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CVE-2026-53950 (GCVE-0-2026-53950)

Vulnerability from nvd – Published: 2026-06-24 18:04 – Updated: 2026-06-24 18:49

Title

@tryghost/activitypub: XSS in Ghost's ActivityPub client

Summary

@tryghost/activitypub is Ghost’s social/federation client app. Prior to 3.1.0, the ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server. This vulnerability is fixed in 3.1.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: < 3.1.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-53949 (GCVE-0-2026-53949)

Vulnerability from nvd – Published: 2026-06-24 18:05 – Updated: 2026-06-24 18:55

Title

Ghost Content API filter bypass reveals private fields

Summary

Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-693 - Protection Mechanism Failure

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.46.1, < 6.21.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-53948 (GCVE-0-2026-53948)

Vulnerability from nvd – Published: 2026-06-24 18:06 – Updated: 2026-06-25 13:17

Title

Ghost: File Upload Content-Type Spoofing

Summary

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.19.4, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53947 (GCVE-0-2026-53947)

Vulnerability from nvd – Published: 2026-06-24 18:07 – Updated: 2026-06-25 17:09

Title

Ghost: Member existence leak via magic link sign-in response

Summary

Ghost is a Node.js content management system. From 5.18.0 until 6.21.1, a discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacker to determine whether a given email address belongs to a registered member of a Ghost site. This vulnerability is fixed in 6.21.1.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-204 - Observable Response Discrepancy

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.18.0, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53946 (GCVE-0-2026-53946)

Vulnerability from nvd – Published: 2026-06-24 18:08 – Updated: 2026-06-25 19:57

Title

Ghost: Mobiledoc image-size fetch SSRF

Summary

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, when re-rendering posts, Ghost would refetch missing image dimensions by issuing an outbound HTTP request to the URL stored on an image card — without restricting that URL to trusted image hosts. An authenticated staff user able to create or edit posts could therefore point an image card at an attacker-chosen host and cause the Ghost server to request it on their behalf, including hosts on internal networks or cloud instance metadata endpoints that would not normally be reachable from the public internet. This vulnerability is fixed in 6.21.1.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.19.4, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53945 (GCVE-0-2026-53945)

Vulnerability from nvd – Published: 2026-06-24 18:09 – Updated: 2026-06-25 15:38

Title

Ghost: Server-side request forgery via DNS rebinding in external request handling

Summary

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.

Severity

4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.9, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53944 (GCVE-0-2026-53944)

Vulnerability from nvd – Published: 2026-06-24 18:10 – Updated: 2026-06-24 18:50

Title

Ghost: Private IP filtering bypass to make server-side requests to internal services

Summary

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, when making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address. This vulnerability is fixed in 6.21.1.

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-184 - Incomplete List of Disallowed Inputs
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.9, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53943 (GCVE-0-2026-53943)

Vulnerability from nvd – Published: 2026-06-24 18:13 – Updated: 2026-06-24 18:48

Title

Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header

Summary

Ghost is a Node.js content management system. From until 6.37.0, when Ghost is behind a shared caching layer that results in cached content being shared between different visitors, an unauthenticated user could send an x-ghost-preview header that altered the rendered frontend response. In affected cache configurations, that response could be stored and served to subsequent visitors requesting the same page, allowing cache poisoning of request-specific preview output. When running Ghost's frontend and admin panel on the same domain this could be used to take over staff user accounts. When running these on different domains staff accounts have no exposure. This vulnerability is fixed in 6.37.0.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-524 - Use of Cache Containing Sensitive Information

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 4.0.0, < 6.37.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-29784 (GCVE-0-2026-29784)

Vulnerability from nvd – Published: 2026-03-07 15:30 – Updated: 2026-03-09 18:26

Title

Ghost: Incomplete CSRF protections around OTC use

Summary

Ghost is a Node.js content management system. From version 5.101.6 to 6.19.2, incomplete CSRF protections around /session/verify made it possible to use OTCs in login sessions different from the requesting session. In some scenarios this might have made it easier for phishers to take over a Ghost site. This issue has been patched in version 6.19.3.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-352 - Cross-Site Request Forgery (CSRF)

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/ec065a77…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.101.6, < 6.19.3

Show details on NVD website

JSON

To clipboard

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CVE-2026-29053 (GCVE-0-2026-29053)

Vulnerability from nvd – Published: 2026-03-05 05:51 – Updated: 2026-03-05 15:29

Title

Ghost Vulnerable to Remote Code Execution via Malicious Themes

Summary

Ghost is a Node.js content management system. From version 0.7.2 to 6.19.0, specifically crafted malicious themes can execute arbitrary code on the server running Ghost. This issue has been patched in version 6.19.1.

Severity

7.7 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 0.7.2, < 6.19.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-26980 (GCVE-0-2026-26980)

Vulnerability from nvd – Published: 2026-02-20 01:00 – Updated: 2026-05-26 13:35

Title

Ghost has a SQL Injection in its Content API

Summary

Ghost is a Node.js content management system. Versions 3.24.0 through 6.19.0 allow unauthenticated attackers to perform arbitrary reads from the database. This issue has been fixed in version 6.19.1.

Severity

9.4 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

4 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/30868d63…	x_refsource_MISC
https://github.com/TryGhost/Ghost/releases/tag/v6.19.1	x_refsource_MISC
https://blog.xlab.qianxin.com/ghost-cms-page-pois…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 3.24.0, < 6.19.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-24778 (GCVE-0-2026-24778)

Vulnerability from nvd – Published: 2026-01-27 21:57 – Updated: 2026-01-28 21:11

Title

Ghost vulnerable to XSS via malicious Portal preview links

Summary

Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially leading to account takeover. Ghost Portal versions 2.29.1 through 2.51.4 and 2.52.0 through 2.57.0 were vulnerable to this issue. Ghost automatically loads the latest patch of the members Portal component via CDN. For Ghost 5.x users, upgrading to v5.121.0 or later fixes the vulnerability. v5.121.0 loads Portal v2.51.5, which contains the patch. For Ghost 6.x users, upgrading to v6.15.0 or later fixes the vulnerability. v6.15.0 loads Portal v2.57.1, which contains the patch. For Ghost installations using a customized or self-hosted version of Portal, it will be necessary to manually rebuild from or update to the latest patch version.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/da858e64…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: @tryghost/portal >= 2.29.1, < 2.51.5 Affected: @tryghost/portal >= 2.52.0, < 2.57.1 Affected: ghost >= 5.43.0, < 5.121.0 Affected: ghost >= 6.0.0, < 6.15.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-22597 (GCVE-0-2026-22597)

Vulnerability from nvd – Published: 2026-01-10 02:57 – Updated: 2026-01-12 16:23

Title

Ghost has SSRF via External Media Inliner

Summary

Ghost is a Node.js content management system. In versions 5.38.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost’s media inliner mechanism allows staff users in possession of a valid authentication token for the Ghost Admin API to exfiltrate data from internal systems via SSRF. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/15d49131…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/93add549…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.38.0, < 5.130.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-22596 (GCVE-0-2026-22596)

Vulnerability from nvd – Published: 2026-01-10 02:57 – Updated: 2026-01-12 17:37

Title

Ghost has SQL Injection in Members Activity Feed

Summary

Ghost is a Node.js content management system. In versions 5.90.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost's /ghost/api/admin/members/events endpoint allows users with authentication credentials for the Admin API to execute arbitrary SQL. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

6.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/cda236e4…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/f2165f96…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.90.0, < 5.130.6

Show details on NVD website

JSON

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CVE-2026-22595 (GCVE-0-2026-22595)

Vulnerability from nvd – Published: 2026-01-10 02:57 – Updated: 2026-01-12 17:51

Title

Ghost has Staff Token permission bypass

Summary

Ghost is a Node.js content management system. In versions 5.121.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost's handling of Staff Token authentication allowed certain endpoints to be accessed that were only intended to be accessible via Staff Session authentication. External systems that have been authenticated via Staff Tokens for Admin/Owner-role users would have had access to these endpoints. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-863 - Incorrect Authorization

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/9513d2a3…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/c3017f81…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.121.0, < 5.130.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-22594 (GCVE-0-2026-22594)

Vulnerability from nvd – Published: 2026-01-10 02:56 – Updated: 2026-01-12 17:53

Title

Ghost has Staff 2FA bypass

Summary

Ghost is a Node.js content management system. In versions 5.105.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost's 2FA mechanism allows staff users to skip email 2FA. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/b59f707f…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/fc7bc2fb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.105.0, < 5.130.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-53943 (GCVE-0-2026-53943)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:13 – Updated: 2026-06-24 18:48

Title

Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header

Summary

Ghost is a Node.js content management system. From until 6.37.0, when Ghost is behind a shared caching layer that results in cached content being shared between different visitors, an unauthenticated user could send an x-ghost-preview header that altered the rendered frontend response. In affected cache configurations, that response could be stored and served to subsequent visitors requesting the same page, allowing cache poisoning of request-specific preview output. When running Ghost's frontend and admin panel on the same domain this could be used to take over staff user accounts. When running these on different domains staff accounts have no exposure. This vulnerability is fixed in 6.37.0.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-524 - Use of Cache Containing Sensitive Information

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 4.0.0, < 6.37.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-53944 (GCVE-0-2026-53944)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:10 – Updated: 2026-06-24 18:50

Title

Ghost: Private IP filtering bypass to make server-side requests to internal services

Summary

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, when making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address. This vulnerability is fixed in 6.21.1.

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-184 - Incomplete List of Disallowed Inputs
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.9, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53945 (GCVE-0-2026-53945)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:09 – Updated: 2026-06-25 15:38

Title

Ghost: Server-side request forgery via DNS rebinding in external request handling

Summary

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.

Severity

4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.9, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53946 (GCVE-0-2026-53946)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:08 – Updated: 2026-06-25 19:57

Title

Ghost: Mobiledoc image-size fetch SSRF

Summary

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, when re-rendering posts, Ghost would refetch missing image dimensions by issuing an outbound HTTP request to the URL stored on an image card — without restricting that URL to trusted image hosts. An authenticated staff user able to create or edit posts could therefore point an image card at an attacker-chosen host and cause the Ghost server to request it on their behalf, including hosts on internal networks or cloud instance metadata endpoints that would not normally be reachable from the public internet. This vulnerability is fixed in 6.21.1.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.19.4, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53947 (GCVE-0-2026-53947)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:07 – Updated: 2026-06-25 17:09

Title

Ghost: Member existence leak via magic link sign-in response

Summary

Ghost is a Node.js content management system. From 5.18.0 until 6.21.1, a discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacker to determine whether a given email address belongs to a registered member of a Ghost site. This vulnerability is fixed in 6.21.1.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-204 - Observable Response Discrepancy

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.18.0, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53948 (GCVE-0-2026-53948)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:06 – Updated: 2026-06-25 13:17

Title

Ghost: File Upload Content-Type Spoofing

Summary

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.19.4, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53949 (GCVE-0-2026-53949)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:05 – Updated: 2026-06-24 18:55

Title

Ghost Content API filter bypass reveals private fields

Summary

Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-693 - Protection Mechanism Failure

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.46.1, < 6.21.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-53950 (GCVE-0-2026-53950)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:04 – Updated: 2026-06-24 18:49

Title

@tryghost/activitypub: XSS in Ghost's ActivityPub client

Summary

@tryghost/activitypub is Ghost’s social/federation client app. Prior to 3.1.0, the ActivityPub client in Ghost was vulnerable to JavaScript injection on posts shared by a maliciously customised ActivityPub server. This vulnerability is fixed in 3.1.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: < 3.1.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-29784 (GCVE-0-2026-29784)

Vulnerability from cvelistv5 – Published: 2026-03-07 15:30 – Updated: 2026-03-09 18:26

Title

Ghost: Incomplete CSRF protections around OTC use

Summary

Ghost is a Node.js content management system. From version 5.101.6 to 6.19.2, incomplete CSRF protections around /session/verify made it possible to use OTCs in login sessions different from the requesting session. In some scenarios this might have made it easier for phishers to take over a Ghost site. This issue has been patched in version 6.19.3.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-352 - Cross-Site Request Forgery (CSRF)

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/ec065a77…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 5.101.6, < 6.19.3

Show details on NVD website

JSON

To clipboard

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CVE-2026-29053 (GCVE-0-2026-29053)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:51 – Updated: 2026-03-05 15:29

Title

Ghost Vulnerable to Remote Code Execution via Malicious Themes

Summary

Ghost is a Node.js content management system. From version 0.7.2 to 6.19.0, specifically crafted malicious themes can execute arbitrary code on the server running Ghost. This issue has been patched in version 6.19.1.

Severity

7.7 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 0.7.2, < 6.19.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-26980 (GCVE-0-2026-26980)

Vulnerability from cvelistv5 – Published: 2026-02-20 01:00 – Updated: 2026-05-26 13:35

Title

Ghost has a SQL Injection in its Content API

Summary

Ghost is a Node.js content management system. Versions 3.24.0 through 6.19.0 allow unauthenticated attackers to perform arbitrary reads from the database. This issue has been fixed in version 6.19.1.

Severity

9.4 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

4 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/30868d63…	x_refsource_MISC
https://github.com/TryGhost/Ghost/releases/tag/v6.19.1	x_refsource_MISC
https://blog.xlab.qianxin.com/ghost-cms-page-pois…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 3.24.0, < 6.19.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-24778 (GCVE-0-2026-24778)

Vulnerability from cvelistv5 – Published: 2026-01-27 21:57 – Updated: 2026-01-28 21:11

Title

Ghost vulnerable to XSS via malicious Portal preview links

Summary

Ghost is an open source content management system. In Ghost versions 5.43.0 through 5.12.04 and 6.0.0 through 6.14.0, an attacker was able to craft a malicious link that, when accessed by an authenticated staff user or member, would execute JavaScript with the victim's permissions, potentially leading to account takeover. Ghost Portal versions 2.29.1 through 2.51.4 and 2.52.0 through 2.57.0 were vulnerable to this issue. Ghost automatically loads the latest patch of the members Portal component via CDN. For Ghost 5.x users, upgrading to v5.121.0 or later fixes the vulnerability. v5.121.0 loads Portal v2.51.5, which contains the patch. For Ghost 6.x users, upgrading to v6.15.0 or later fixes the vulnerability. v6.15.0 loads Portal v2.57.1, which contains the patch. For Ghost installations using a customized or self-hosted version of Portal, it will be necessary to manually rebuild from or update to the latest patch version.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/da858e64…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: @tryghost/portal >= 2.29.1, < 2.51.5 Affected: @tryghost/portal >= 2.52.0, < 2.57.1 Affected: ghost >= 5.43.0, < 5.121.0 Affected: ghost >= 6.0.0, < 6.15.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-22597 (GCVE-0-2026-22597)

Vulnerability from cvelistv5 – Published: 2026-01-10 02:57 – Updated: 2026-01-12 16:23

Title

Ghost has SSRF via External Media Inliner

Summary

Ghost is a Node.js content management system. In versions 5.38.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost’s media inliner mechanism allows staff users in possession of a valid authentication token for the Ghost Admin API to exfiltrate data from internal systems via SSRF. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/15d49131…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/93add549…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.38.0, < 5.130.6

Show details on NVD website

JSON

To clipboard

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  "containers": {
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                "id": "CVE-2026-22597",
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CVE-2026-22596 (GCVE-0-2026-22596)

Vulnerability from cvelistv5 – Published: 2026-01-10 02:57 – Updated: 2026-01-12 17:37

Title

Ghost has SQL Injection in Members Activity Feed

Summary

Ghost is a Node.js content management system. In versions 5.90.0 through 5.130.5 and 6.0.0 through 6.10.3, a vulnerability in Ghost's /ghost/api/admin/members/events endpoint allows users with authentication credentials for the Admin API to execute arbitrary SQL. This issue has been patched in versions 5.130.6 and 6.11.0.

Severity

6.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/cda236e4…	x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/f2165f96…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.0.0, < 6.11.0 Affected: >= 5.90.0, < 5.130.6

Show details on NVD website

JSON

To clipboard

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42 vulnerabilities found for Ghost by TryGhost

CVE-2026-53950 (GCVE-0-2026-53950)

CVE-2026-53949 (GCVE-0-2026-53949)

CVE-2026-53948 (GCVE-0-2026-53948)

CVE-2026-53947 (GCVE-0-2026-53947)

CVE-2026-53946 (GCVE-0-2026-53946)

CVE-2026-53945 (GCVE-0-2026-53945)

CVE-2026-53944 (GCVE-0-2026-53944)

CVE-2026-53943 (GCVE-0-2026-53943)

CVE-2026-29784 (GCVE-0-2026-29784)

CVE-2026-29053 (GCVE-0-2026-29053)

CVE-2026-26980 (GCVE-0-2026-26980)

CVE-2026-24778 (GCVE-0-2026-24778)

CVE-2026-22597 (GCVE-0-2026-22597)

CVE-2026-22596 (GCVE-0-2026-22596)

CVE-2026-22595 (GCVE-0-2026-22595)

CVE-2026-22594 (GCVE-0-2026-22594)

CVE-2026-53943 (GCVE-0-2026-53943)

CVE-2026-53944 (GCVE-0-2026-53944)

CVE-2026-53945 (GCVE-0-2026-53945)

CVE-2026-53946 (GCVE-0-2026-53946)

CVE-2026-53947 (GCVE-0-2026-53947)

CVE-2026-53948 (GCVE-0-2026-53948)

CVE-2026-53949 (GCVE-0-2026-53949)

CVE-2026-53950 (GCVE-0-2026-53950)

CVE-2026-29784 (GCVE-0-2026-29784)

CVE-2026-29053 (GCVE-0-2026-29053)

CVE-2026-26980 (GCVE-0-2026-26980)

CVE-2026-24778 (GCVE-0-2026-24778)

CVE-2026-22597 (GCVE-0-2026-22597)

CVE-2026-22596 (GCVE-0-2026-22596)