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CVE-2026-47202 (GCVE-0-2026-47202)

Vulnerability from nvd – Published: 2026-05-26 17:30 – Updated: 2026-05-27 17:23

Title

Kavita: Pre-Auth Account Takeover

Summary

Kavita is a cross platform reading server. Prior to 0.9.0.2, an Improper Token validation flaw permits a remote and unauthenticated threat actor to request a JWT for any user including admins given knowledge of their username. This vulnerability is fixed in 0.9.0.2.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-287 - Improper Authentication
CWE-345 - Insufficient Verification of Data Authenticity
CWE-697 - Incorrect Comparison

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/releases/tag/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-44776 (GCVE-0-2026-44776)

Vulnerability from nvd – Published: 2026-05-26 17:29 – Updated: 2026-05-26 18:27

Title

Kavita: IDOR in /api/Download/*

Summary

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can download the full file contents, query file sizes, and read metadata for that content. This affects /api/Download/volume-size, /api/Download/chapter-size, /api/Download/series-size, /api/Download/volume, /api/Download/chapter, /api/Download/series, and /api/Chapter. This vulnerability is fixed in 0.9.0.

Severity

5.9 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-44775 (GCVE-0-2026-44775)

Vulnerability from nvd – Published: 2026-05-26 17:27 – Updated: 2026-05-27 13:53

Title

Kavita: No authentication at /api/Reader/image

Summary

Kavita is a cross platform reading server. Prior to 0.9.0, the ReaderController.GetImage endpoint is decorated with [AllowAnonymous], allowing completely unauthenticated access to page images from any chapter in any library. While the endpoint accepts an apiKey parameter, it is never validated. Since entity IDs are sequential integers, an unauthenticated attacker can trivially enumerate all content on the server. This vulnerability is fixed in 0.9.0.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/blob/8c686df2…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0

Show details on NVD website

JSON

To clipboard

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CVE-2024-39307 (GCVE-0-2024-39307)

Vulnerability from nvd – Published: 2024-06-28 20:44 – Updated: 2024-08-02 04:19

Title

Cross-Site Scripting (XSS) vulnerability via crafted ebooks in Kavita

Summary

Kavita is a cross platform reading server. Opening an ebook with malicious scripts inside leads to code execution inside the browsing context. Kavita doesn't sanitize or sandbox the contents of epubs, allowing scripts inside ebooks to execute. This vulnerability was patched in version 0.8.1.

Severity

3.5 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

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/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: <= 0.8.0

Show details on NVD website

JSON

To clipboard

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CVE-2023-0919 (GCVE-0-2023-0919)

Vulnerability from nvd – Published: 2023-02-19 00:00 – Updated: 2024-08-02 05:24

Title

Missing Authentication for Critical Function in kareadita/kavita

Summary

Missing Authentication for Critical Function in GitHub repository kareadita/kavita prior to 0.7.0.

Severity

8.1 (High)


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

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/3c514923-473f-4c50-ae0…
https://github.com/Kareadita/Kavita/pull/1748/com…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.7.0 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-3993 (GCVE-0-2022-3993)

Vulnerability from nvd – Published: 2022-11-14 00:00 – Updated: 2025-04-30 19:00

Title

Improper Restriction of Excessive Authentication Attempts in kareadita/kavita

Summary

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Severity

9.4 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

@huntrdev

References

2 references

URL	Tags
https://github.com/kareadita/kavita/commit/f8db37…
https://huntr.dev/bounties/bebd0cd6-18ec-469c-b6c…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.6.0.3 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-3945 (GCVE-0-2022-3945)

Vulnerability from nvd – Published: 2022-11-11 00:00 – Updated: 2025-04-30 19:53

Title

Improper Restriction of Excessive Authentication Attempts in kareadita/kavita

Summary

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Severity

9.4 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/55cd91b3-1d94-4d34-8d7…
https://github.com/kareadita/kavita/commit/f8db37…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.6.0.3 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-2756 (GCVE-0-2022-2756)

Vulnerability from nvd – Published: 2022-08-10 15:15 – Updated: 2024-08-03 00:46

Title

Server-Side Request Forgery (SSRF) in kareadita/kavita

Summary

Server-Side Request Forgery (SSRF) in GitHub repository kareadita/kavita prior to 0.5.4.1.

Severity

7.1 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CWE

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

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/95e7c181-9d80-4428-aeb…	x_refsource_CONFIRM
https://github.com/kareadita/kavita/commit/9c31f7…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.5.4.1 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2026-47202 (GCVE-0-2026-47202)

Vulnerability from cvelistv5 – Published: 2026-05-26 17:30 – Updated: 2026-05-27 17:23

Title

Kavita: Pre-Auth Account Takeover

Summary

Kavita is a cross platform reading server. Prior to 0.9.0.2, an Improper Token validation flaw permits a remote and unauthenticated threat actor to request a JWT for any user including admins given knowledge of their username. This vulnerability is fixed in 0.9.0.2.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-287 - Improper Authentication
CWE-345 - Insufficient Verification of Data Authenticity
CWE-697 - Incorrect Comparison

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/releases/tag/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-44776 (GCVE-0-2026-44776)

Vulnerability from cvelistv5 – Published: 2026-05-26 17:29 – Updated: 2026-05-26 18:27

Title

Kavita: IDOR in /api/Download/*

Summary

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can download the full file contents, query file sizes, and read metadata for that content. This affects /api/Download/volume-size, /api/Download/chapter-size, /api/Download/series-size, /api/Download/volume, /api/Download/chapter, /api/Download/series, and /api/Chapter. This vulnerability is fixed in 0.9.0.

Severity

5.9 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-44775 (GCVE-0-2026-44775)

Vulnerability from cvelistv5 – Published: 2026-05-26 17:27 – Updated: 2026-05-27 13:53

Title

Kavita: No authentication at /api/Reader/image

Summary

Kavita is a cross platform reading server. Prior to 0.9.0, the ReaderController.GetImage endpoint is decorated with [AllowAnonymous], allowing completely unauthenticated access to page images from any chapter in any library. While the endpoint accepts an apiKey parameter, it is never validated. Since entity IDs are sequential integers, an unauthenticated attacker can trivially enumerate all content on the server. This vulnerability is fixed in 0.9.0.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/blob/8c686df2…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: < 0.9.0

Show details on NVD website

JSON

To clipboard

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CVE-2024-39307 (GCVE-0-2024-39307)

Vulnerability from cvelistv5 – Published: 2024-06-28 20:44 – Updated: 2024-08-02 04:19

Title

Cross-Site Scripting (XSS) vulnerability via crafted ebooks in Kavita

Summary

Kavita is a cross platform reading server. Opening an ebook with malicious scripts inside leads to code execution inside the browsing context. Kavita doesn't sanitize or sandbox the contents of epubs, allowing scripts inside ebooks to execute. This vulnerability was patched in version 0.8.1.

Severity

3.5 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

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/Kareadita/Kavita/security/advi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kareadita	Kavita	Affected: <= 0.8.0

Show details on NVD website

JSON

To clipboard

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CVE-2023-0919 (GCVE-0-2023-0919)

Vulnerability from cvelistv5 – Published: 2023-02-19 00:00 – Updated: 2024-08-02 05:24

Title

Missing Authentication for Critical Function in kareadita/kavita

Summary

Missing Authentication for Critical Function in GitHub repository kareadita/kavita prior to 0.7.0.

Severity

8.1 (High)


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

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/3c514923-473f-4c50-ae0…
https://github.com/Kareadita/Kavita/pull/1748/com…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.7.0 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-3993 (GCVE-0-2022-3993)

Vulnerability from cvelistv5 – Published: 2022-11-14 00:00 – Updated: 2025-04-30 19:00

Title

Improper Restriction of Excessive Authentication Attempts in kareadita/kavita

Summary

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Severity

9.4 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

@huntrdev

References

2 references

URL	Tags
https://github.com/kareadita/kavita/commit/f8db37…
https://huntr.dev/bounties/bebd0cd6-18ec-469c-b6c…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.6.0.3 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-3945 (GCVE-0-2022-3945)

Vulnerability from cvelistv5 – Published: 2022-11-11 00:00 – Updated: 2025-04-30 19:53

Title

Improper Restriction of Excessive Authentication Attempts in kareadita/kavita

Summary

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Severity

9.4 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/55cd91b3-1d94-4d34-8d7…
https://github.com/kareadita/kavita/commit/f8db37…

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.6.0.3 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2022-2756 (GCVE-0-2022-2756)

Vulnerability from cvelistv5 – Published: 2022-08-10 15:15 – Updated: 2024-08-03 00:46

Title

Server-Side Request Forgery (SSRF) in kareadita/kavita

Summary

Server-Side Request Forgery (SSRF) in GitHub repository kareadita/kavita prior to 0.5.4.1.

Severity

7.1 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CWE

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

Assigner

@huntrdev

References

2 references

URL	Tags
https://huntr.dev/bounties/95e7c181-9d80-4428-aeb…	x_refsource_CONFIRM
https://github.com/kareadita/kavita/commit/9c31f7…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
kareadita	kareadita/kavita	Affected: unspecified , < 0.5.4.1 (custom)

Show details on NVD website

JSON

To clipboard

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            },
            {
              "name": "https://github.com/kareadita/kavita/commit/9c31f7e7c81b919923cb2e3857439ec0d16243e4",
              "refsource": "MISC",
              "url": "https://github.com/kareadita/kavita/commit/9c31f7e7c81b919923cb2e3857439ec0d16243e4"
            }
          ]
        },
        "source": {
          "advisory": "95e7c181-9d80-4428-aebf-687ac55a9216",
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntrdev",
    "cveId": "CVE-2022-2756",
    "datePublished": "2022-08-10T15:15:15.000Z",
    "dateReserved": "2022-08-10T00:00:00.000Z",
    "dateUpdated": "2024-08-03T00:46:04.503Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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16 vulnerabilities by Kareadita

CVE-2026-47202 (GCVE-0-2026-47202)

CVE-2026-44776 (GCVE-0-2026-44776)

CVE-2026-44775 (GCVE-0-2026-44775)

CVE-2024-39307 (GCVE-0-2024-39307)

CVE-2023-0919 (GCVE-0-2023-0919)

CVE-2022-3993 (GCVE-0-2022-3993)

CVE-2022-3945 (GCVE-0-2022-3945)

CVE-2022-2756 (GCVE-0-2022-2756)

CVE-2026-47202 (GCVE-0-2026-47202)

CVE-2026-44776 (GCVE-0-2026-44776)

CVE-2026-44775 (GCVE-0-2026-44775)

CVE-2024-39307 (GCVE-0-2024-39307)

CVE-2023-0919 (GCVE-0-2023-0919)

CVE-2022-3993 (GCVE-0-2022-3993)

CVE-2022-3945 (GCVE-0-2022-3945)

CVE-2022-2756 (GCVE-0-2022-2756)