MEDIUM SeverityCVSS 3.14.5CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

CVE-2026-42887

Last updated May 11, 2026 · Published May 11, 2026

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

1 listed

advplyr:audiobookshelf

Mappings

CWE

CWE-79

CAPEC

None listed.

Research

Cross-Site Scripting (XSS)Covers reflected, stored, and DOM based XSS risks and why they remain high impact. Provides prevention…

Training

XSS in React, Vue and Server ComponentsCross-site scripting in modern component frameworks and how to prevent it.

CVE-2026-42887

Description

Affected products

Mappings

Related