CVE-2026-42887

Published: May 11, 2026Modified: Jun 17, 2026Deferred

4.5

Vector

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

Exploitability: 0.9 / Impact: 3.6

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

Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.33.0, a stored cross-site scripting (XSS) vulnerability exists in the Login Page due to improper sanitization of the authLoginCustomMessage field of the /api/auth-settings endpoint. An attacker with administrative privileges can inject arbitrary HTML/JavaScript that will be rendered on the login page for all users. This vulnerability is fixed in 2.33.0.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4

Source: security-advisories@github.com

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.