CVE-2026-27973: Audiobookshelf has Stored XSS in ItemSearchCard.vue via Audiobook Metadata (Search Results on Mobile App)
Audiobookshelf is a self-hosted audiobook and podcast server. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 0.12.0-beta of the Audiobookshelf mobile application that allows arbitrary JavaScript execution through malicious library metadata. Attackers with library modification privileges can execute code in victim users' browsers/WebViews, potentially leading to session hijacking, data exfiltration, and unauthorized access to native device APIs. The issue is fixed in audiobookshelf-app version 0.12.0-beta, corresponding to audiobookshelf version 2.12.0.
Affected Software
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Event History
Frequently Asked Questions
What is the severity of CVE-2026-27973?
CVE-2026-27973 is considered a moderate severity vulnerability due to the potential for stored cross-site scripting attacks.
How do I fix CVE-2026-27973?
To fix CVE-2026-27973, update the Audiobookshelf mobile application to version 0.12.0-beta or later.
What versions are affected by CVE-2026-27973?
CVE-2026-27973 affects versions of Audiobookshelf prior to 0.12.0-beta for the mobile application and prior to 2.12.0 for the server.
What is stored XSS as it relates to CVE-2026-27973?
Stored XSS in CVE-2026-27973 allows an attacker to inject malicious scripts into the Audiobookshelf application that are then executed when users access affected pages.
How can I determine if my Audiobookshelf installation is affected by CVE-2026-27973?
Check your Audiobookshelf mobile application version to see if it is prior to 0.12.0-beta or the server version if it is prior to 2.12.0.