What is CVE-2025-52880?

CVE-2025-52880 is a medium-severity vulnerability in Gotson Komga, classified under CWE-799. CVSS score: 4.2/10. Published 2025-06-24.

How severe is CVE-2025-52880?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Gotson Komga

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.

EPSS: 0.003 (20.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N.

Affected products

Gotson Komga — versions >= 1.8.0, < 1.22.0

Weakness classification (CWE)

CWE-799

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-52880?: CVE-2025-52880 is a medium-severity vulnerability in Gotson Komga, classified under CWE-799. CVSS score: 4.2/10. Published 2025-06-24.
How severe is CVE-2025-52880?: Medium severity. CVSS v3 base score is 4.2 out of 10.