CVE-2026-27963

Name: CVE-2026-27963
Creator: NVD / NIST
Published: 2026-02-26T03:16:04.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2026-27963 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.23%

13.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Audiobookshelf	Audiobookshelf	< 2.32.0

References

https://github.com/advplyr/audiobookshelf/commit/503f4611b221a5bde19024e657021670df204478Patch
https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-69cp-m725-wf78Exploit, Mitigation, Patch, Vendor Advisory

Timeline

Published: Feb 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27963?

How severe is CVE-2026-27963?

CVE-2026-27963 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27963?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27963?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST