CVE Alert: CVE-2025-52880

Vulnerability Summary: CVE-2025-52880
Komga is a media server for comics, mangas, BDs, magazines and eBooks. A Cross-Site Scripting (XSS) vulnerability has been discovered in versions 1.8.0 through 1.21.3 when serving EPUB resources, either directly from the API, or when reading using the epub reader. The vulnerability lets an attacker perform actions on the victim’s behalf. When targeting an admin user, this can be combined with controlling a server-side command to achieve arbitrary code execution. For this vulnerability to be exploited, a malicious EPUB file has to be present in a Komga library, and subsequently accessed in the Epub reader by an admin user. Version 1.22.0 contains a patch for the issue.
Affected Endpoints:
No affected endpoints listed.
Published Date:
6/24/2025, 8:15:26 PM
⚠️ CVSS Score:
Exploit Status:
Not ExploitedReferences:
- https://github.com/gotson/komga/commit/5f9cc449b7846ed2066752c72c9ce7b20c3a85a7
- https://github.com/gotson/komga/security/advisories/GHSA-m7mm-6jxp-2m4x
Recommended Action:
No proposed action available. Please refer to vendor documentation for updates.
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