CVE-2025-52880

Komga Vulnerable to Arbitrary Code Execution via Crafted EPUB File

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.

Category

4.2
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: gotson komga
Published at:
Updated at:

References

Link Tags
https://github.com/gotson/komga/security/advisories/GHSA-m7mm-6jxp-2m4x
https://github.com/gotson/komga/commit/5f9cc449b7846ed2066752c72c9ce7b20c3a85a7

Frequently Asked Questions

What is the severity of CVE-2025-52880?
CVE-2025-52880 has been scored as a medium severity vulnerability.
How to fix CVE-2025-52880?
To fix CVE-2025-52880, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52880 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52880 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-52880?
CVE-2025-52880 affects gotson komga.
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