advplyr audiobookshelf up to 2.11.x cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability was found in advplyr audiobookshelf up to 2.11.x and classified as problematic. This affects an unknown function. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2026-27973. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in advplyr audiobookshelf up to 2.11.x. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-27973 since 02/25/2026. The exploitation is known to be difficult. The attack may be launched remotely. The exploitation requires an enhanced level of successful authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2.12.0 eliminates this vulnerability. Applying the patch b2c2b625e3cf586562397f4c02e38059f2b8ef5c 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

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 2.0
VulDB Temp Score: 1.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.8
NVD Vector: 🔒

CNA Base Score: 4.0
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: audiobookshelf 2.12.0
Patch: b2c2b625e3cf586562397f4c02e38059f2b8ef5c

Timelineinfo

02/25/2026 CVE reserved
02/26/2026 +1 days Advisory disclosed
02/26/2026 +0 days VulDB entry created
03/12/2026 +14 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-2433-p93m-xhhg
Status: Confirmed

CVE: CVE-2026-27973 (🔒)
GCVE (CVE): GCVE-0-2026-27973
GCVE (VulDB): GCVE-100-347960

Entryinfo

Created: 02/26/2026 07:31
Updated: 03/12/2026 21:44
Changes: 02/26/2026 07:31 (66), 03/12/2026 21:44 (12)
Complete: 🔍
Cache ID: 216::103

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