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.
History

Tue, 12 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Advplyr
Advplyr audiobookshelf
Vendors & Products Advplyr
Advplyr audiobookshelf

Mon, 11 May 2026 20:15:00 +0000

Type Values Removed Values Added
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.
Title Audiobookshelf: Stored Cross-Site Scripting in Login Page Custom Message
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-05-11T19:55:32.090Z

Updated: 2026-05-12T13:29:46.446Z

Reserved: 2026-04-30T18:49:06.712Z

Link: CVE-2026-42887

cve-icon Vulnrichment

Updated: 2026-05-12T13:29:42.984Z

cve-icon NVD

Status : Deferred

Published: 2026-05-11T20:25:45.713

Modified: 2026-05-12T14:50:18.527

Link: CVE-2026-42887

cve-icon Redhat

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