CVE-2025-52880

Published: Jun 24, 2025Modified: Jun 17, 2026Deferred

4.2

Vector

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

Exploitability: 0.5 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-799

Improper Control of Interaction Frequency

The product does not properly limit the number or frequency of interactions that it has with an actor, such as the number of incoming requests.

References (2)

https://github.com/gotson/komga/commit/5f9cc449b7846ed2066752c72c9ce7b20c3a85a7

Source: security-advisories@github.com

https://github.com/gotson/komga/security/advisories/GHSA-m7mm-6jxp-2m4x

Source: security-advisories@github.com

Timeline

No history available yet.