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CVE PROGRAM SOURCE RECORD4.5 Medium

CVE-2026-42887

Audiobookshelf: Stored Cross-Site Scripting in Login Page Custom Message

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

advplyr audiobookshelf

  • < 2.33.0affected

References