Vulnerability · Published Apr 29, 2025 · Assigned by GitHub_M

CVE-2025-46338Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload

Medium 6.9

In plain English

A medium-severity cross-site scripting in audiobookshelf from advplyr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.4%top 68.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to version 2.21.0, an improper input handling vulnerability in the `/api/upload` endpoint allows an attacker to perform a reflected cross-site scripting (XSS) attack by submitting malicious payloads in the `libraryId` field. The unsanitized input is reflected in the server’s error message, enabling arbitrary JavaScript execution in a victim's browser. This issue has been patched in version 2.21.0.

Affected products (as reported)

Vendor	Product	Versions
advplyr	audiobookshelf	< 2.21.0

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-47g3-c5hx-2q3w x_refsource_CONFIRM
https://github.com/advplyr/audiobookshelf/commit/35870a01583b2947030f4e3d4ac769c3ff298386 x_refsource_MISC