Stored Cross-Site Scripting Vulnerability in Audiobookshelf Mobile Application
CVE-2026-27973

4MEDIUM

Key Information:

Vendor

Advplyr

Status
Audiobookshelf
Audiobookshelf-app
Vendor
CVE Published:
26 February 2026

What is CVE-2026-27973?

The Audiobookshelf mobile application, a self-hosted server for audiobooks and podcasts, contains a stored XSS vulnerability prior to version 0.12.0-beta. This flaw allows attackers with library modification privileges to inject malicious JavaScript through modified library metadata. As a result, arbitrary code can be executed in the browsers or WebViews of targeted users, which may lead to session hijacking, unauthorized access to sensitive data, and potential exploitation of native device APIs. The issue was rectified in version 0.12.0-beta of the Audiobookshelf app.

Affected Version(s)

audiobookshelf < 2.12.0

audiobookshelf-app < 0.12.0-beta

References

https://github.com/advplyr/audiobookshelf/security/adviso...
x_refsource_CONFIRM
https://github.com/advplyr/audiobookshelf-app/commit/b2c2...
x_refsource_MISC

CVSS V3.1

Score:
4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.