What is CVE-2026-27974?

CVE-2026-27974 is a medium-severity vulnerability in Advplyr Audiobookshelf-app, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-02-26.

How severe is CVE-2026-27974?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Advplyr Audiobookshelf-app

CVE-2026-27974

Audiobookshelf is a self-hosted audiobook and podcast server. A 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 ma…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Advplyr Audiobookshelf-app — versions < 0.12.0-beta

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-8c9r-pvrj-vcf5 (x_refsource_CONFIRM)
https://github.com/advplyr/audiobookshelf-app/commit/bab95530c8c3d7a4b4cec5b059da8b79ad50223e (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-27974?: CVE-2026-27974 is a medium-severity vulnerability in Advplyr Audiobookshelf-app, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-02-26.
How severe is CVE-2026-27974?: Medium severity. CVSS v3 base score is 4.8 out of 10.