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    CVE-2026-27973

    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.

    Published:Feb 26, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 26, 2026
    EPSS Score:0.00048
    CVSS Score:4

    Affected Products

    Vendor
    Advplyr
    Product
    Audiobookshelf
    Vendor
    Audiobookshelf
    Product
    Audiobookshelf
    Vendor
    Audiobookshelf
    Product
    Audiobookshelf Mobile App

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-73085 (CVSS 5.3) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.36.0, the jwtAuthCheck function in se…
    CVE-2026-71209 (CVSS 7.5) — audiobookshelf's authentication-exemption check (server/routers/Auth.js) matches unauthenticated-allowed GET r…
    CVE-2026-42888 (CVSS 6.9) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the podcast creation endpoint a…
    CVE-2026-42887 (CVSS 4.5) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.33.0, a stored cross-site scripting (…
    CVE-2026-42886 (CVSS 4.9) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload en…
    CVE-2026-42885 (CVSS 4.3) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/filesystem/pathex…
    CVE-2026-42884 (CVSS 4.3) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/collections and GE…
    CVE-2026-42883 (CVSS 6.5) — Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/libraries/:id/down…
    CVE-2026-27974 (CVSS 4.8) — Audiobookshelf is a self-hosted audiobook and podcast server. A cross-site scripting (XSS) vulnerability exist…
    CVE-2026-27963 (CVSS 4.8) — Audiobookshelf is a self-hosted audiobook and podcast server. A stored cross-site scripting (XSS) vulnerabilit…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High