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6 vulnerabilities by PiranhaCMS
CVE-2026-111665 (GCVE-0-2026-111665)
Vulnerability from nvd – Published: 2026-10-16 17:39 – Updated: 2026-10-19 13:23
VLAI
EPSS
VEX
Title
Piranha CMS through 12.2 Missing Authorization in Manager Language API
Summary
Piranha CMS through 12.2 contains a missing authorization vulnerability in the Piranha.Manager LanguageApiController that allows any authenticated manager user to list, create, edit and delete site languages without the granular Language, LanguageAdd, LanguageEdit or LanguageDelete permissions. Attackers can call the manager/api/language Get, Save and Delete actions directly to remove languages and reassign sites to the default, affecting localized content instance-wide.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 13:23 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@hieuPenguinnn/piranha-cms-mana… | third-party-advisory |
| https://github.com/PiranhaCMS/piranha.core/blob/v… | technical-description |
| https://github.com/PiranhaCMS/piranha.core/blob/v… | technical-description |
| https://www.vulncheck.com/advisories/piranha-cms-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha CMS |
Affected:
0 , ≤ 12.2
(custom)
cpe:2.3:a:dotnetfoundation:piranha_cms:*:*:*:*:*:*:*:* |
Date Public
2026-10-15 00:00
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CVE-2021-25976 (GCVE-0-2021-25976)
Vulnerability from nvd – Published: 2021-11-16 09:05 – Updated: 2025-04-30 15:46
VLAI
EPSS
VEX
Title
Piranha CMS - Site-wide Cross-Site Request Forgery (CSRF)
Summary
In PiranhaCMS, versions 4.0.0-alpha1 to 9.2.0 are vulnerable to cross-site request forgery (CSRF) when performing various actions supported by the management system, such as deleting a user, deleting a role, editing a post, deleting a media folder etc., when an ID is known.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-30 15:27 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/PiranhaCMS/piranha.core/commit… | x_refsource_MISC |
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha |
Affected:
4.0.0-alpha1 , < unspecified
(custom)
Affected: unspecified , ≤ 9.2.0 (custom) |
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CVE-2021-25977 (GCVE-0-2021-25977)
Vulnerability from nvd – Published: 2021-10-25 13:10 – Updated: 2025-04-30 15:52
VLAI
EPSS
VEX
Title
Piranha CMS - Stored XSS in Page Title
Summary
In PiranhaCMS, versions 7.0.0 to 9.1.1 are vulnerable to stored XSS due to the page title improperly sanitized. By creating a page with a specially crafted page title, a low privileged user can trigger arbitrary JavaScript execution.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-30 15:49 UTC
CWE
- CWE-79 - Cross-site Scripting (XSS)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/PiranhaCMS/piranha.core/commit… | x_refsource_MISC |
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha |
Affected:
7.0.0 , < unspecified
(custom)
Affected: unspecified , ≤ 9.1.1 (custom) |
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CVE-2026-111665 (GCVE-0-2026-111665)
Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-19 13:23
VLAI
EPSS
VEX
Title
Piranha CMS through 12.2 Missing Authorization in Manager Language API
Summary
Piranha CMS through 12.2 contains a missing authorization vulnerability in the Piranha.Manager LanguageApiController that allows any authenticated manager user to list, create, edit and delete site languages without the granular Language, LanguageAdd, LanguageEdit or LanguageDelete permissions. Attackers can call the manager/api/language Get, Save and Delete actions directly to remove languages and reassign sites to the default, affecting localized content instance-wide.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 13:23 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@hieuPenguinnn/piranha-cms-mana… | third-party-advisory |
| https://github.com/PiranhaCMS/piranha.core/blob/v… | technical-description |
| https://github.com/PiranhaCMS/piranha.core/blob/v… | technical-description |
| https://www.vulncheck.com/advisories/piranha-cms-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha CMS |
Affected:
0 , ≤ 12.2
(custom)
cpe:2.3:a:dotnetfoundation:piranha_cms:*:*:*:*:*:*:*:* |
Date Public
2026-10-15 00:00
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CVE-2021-25976 (GCVE-0-2021-25976)
Vulnerability from cvelistv5 – Published: 2021-11-16 09:05 – Updated: 2025-04-30 15:46
VLAI
EPSS
VEX
Title
Piranha CMS - Site-wide Cross-Site Request Forgery (CSRF)
Summary
In PiranhaCMS, versions 4.0.0-alpha1 to 9.2.0 are vulnerable to cross-site request forgery (CSRF) when performing various actions supported by the management system, such as deleting a user, deleting a role, editing a post, deleting a media folder etc., when an ID is known.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-30 15:27 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/PiranhaCMS/piranha.core/commit… | x_refsource_MISC |
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha |
Affected:
4.0.0-alpha1 , < unspecified
(custom)
Affected: unspecified , ≤ 9.2.0 (custom) |
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CVE-2021-25977 (GCVE-0-2021-25977)
Vulnerability from cvelistv5 – Published: 2021-10-25 13:10 – Updated: 2025-04-30 15:52
VLAI
EPSS
VEX
Title
Piranha CMS - Stored XSS in Page Title
Summary
In PiranhaCMS, versions 7.0.0 to 9.1.1 are vulnerable to stored XSS due to the page title improperly sanitized. By creating a page with a specially crafted page title, a low privileged user can trigger arbitrary JavaScript execution.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-30 15:49 UTC
CWE
- CWE-79 - Cross-site Scripting (XSS)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/PiranhaCMS/piranha.core/commit… | x_refsource_MISC |
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PiranhaCMS | Piranha |
Affected:
7.0.0 , < unspecified
(custom)
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"description_data": [
{
"lang": "eng",
"value": "In PiranhaCMS, versions 7.0.0 to 9.1.1 are vulnerable to stored XSS due to the page title improperly sanitized. By creating a page with a specially crafted page title, a low privileged user can trigger arbitrary JavaScript execution."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-79 Cross-site Scripting (XSS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/PiranhaCMS/piranha.core/commit/543bc53c7dbd28c793ec960b57fb0e716c6b18d7",
"refsource": "MISC",
"url": "https://github.com/PiranhaCMS/piranha.core/commit/543bc53c7dbd28c793ec960b57fb0e716c6b18d7"
},
{
"name": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25977",
"refsource": "MISC",
"url": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25977"
}
]
},
"solution": [
{
"lang": "en",
"value": "Update to 9.2.0"
}
],
"source": {
"advisory": "https://www.whitesourcesoftware.com/vulnerability-database/",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "478c68dd-22c1-4a41-97cd-654224dfacff",
"assignerShortName": "Mend",
"cveId": "CVE-2021-25977",
"datePublished": "2021-10-25T13:10:10.000Z",
"dateReserved": "2021-01-22T00:00:00.000Z",
"dateUpdated": "2025-04-30T15:52:58.659Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}