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CVE Vulnerability Details :
CVE-2026-42887
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-11 May, 2026 | 19:55
Updated At-12 May, 2026 | 13:29
Rejected At-
▼CVE Numbering Authority (CNA)
Audiobookshelf: Stored Cross-Site Scripting in Login Page Custom Message

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
Vendor
advplyr
Product
audiobookshelf
Versions
Affected
  • < 2.33.0
Problem Types
TypeCWE IDDescription
CWECWE-79CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
3.14.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 4.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4
x_refsource_CONFIRM
Hyperlink: https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4
exploit
Hyperlink: https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-cx29-ghq2-9cm4
Resource:
exploit
Details not found