advplyr audiobookshelf up to 2.31.x cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in advplyr audiobookshelf up to 2.31.x. The affected element is an unknown function. The manipulation results in cross site scripting. This vulnerability was named CVE-2026-27963. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in advplyr audiobookshelf up to 2.31.x. Affected is some unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Audiobookshelf is a self-hosted audiobook and podcast server. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 2.32.0 of the Audiobookshelf web application that allows arbitrary JavaScript execution through malicious library metadata. Attackers with library modification privileges can execute code in victim users' browsers, potentially leading to session hijacking and data exfiltration. Version 2.32.0 contains a patch for the issue.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-27963 since 02/25/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 2.32.0 eliminates this vulnerability. Applying the patch 503f4611b221a5bde19024e657021670df204478 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• advplyr

Name

• audiobookshelf

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31

License

• open-source

Website

• Product: https://github.com/advplyr/audiobookshelf/

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