CVE-2025-66308

This admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.11.0-beta.1, a Stored Cross-Site Scripting (XSS) vulnerability was identified in the /admin/config/site endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[taxonomies] parameter. The injected payload is stored on the server and automatically executed in the browser of any user who accesses the affected site configuration, resulting in a persistent attack vector. This vulnerability is fixed in 1.11.0-beta.1.

Score

CVSS 4.0 6.8 Medium

Status

Analyzed - security-advisories@github.com

Published

2025-12-01

Last modified

2025-12-02

Weaknesses

CWE-79

Affected products

• Grav (Getgrav)
• Grav-plugin-admin (Getgrav)

References

• https://github.com/getgrav/grav-plugin-admin/commit/99f653296504f1d6408510dd2f6f20a45a26f9b0
• https://github.com/getgrav/grav/security/advisories/GHSA-gqxx-248x-g29f