CVE-2026-42887
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
44/100
Published: 2026-05-11
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
Conf. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
High
UI:
Required
S:
Unchanged
C:
High
I:
None
A:
None
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.