CVE-2025-66311CWE-79cross-site-scripting

CVE-2025-66311

Medium · published December 2, 2025

CVSS v3.1
5.4
EPSS
0%
Percentile
11.1
In the wild
Unconfirmed
What it is

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/pages/[page] endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[header][metadata], data[header][taxonomy][category], and data[header][taxonomy][tag] parameters. These scripts are stored in the page frontmatter and executed automatically whenever the affected page is accessed or rendered in the administrative interface. This vulnerability is fixed in 1.11.0-beta.1.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00214 · 11.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-02T03:15Z
Affected products (1)
ProductVersionsFixed in
getgrav/grav-plugin-admin≤ 1.10.50—
References (3)
https://github.com/getgrav/grav-plugin-admin/commit/99f653296504f1d6408510dd2f6f20a45a26f9b0 · [email protected]https://github.com/getgrav/grav/security/advisories/GHSA-mpjj-4688-3fxg · [email protected]https://github.com/getgrav/grav/security/advisories/GHSA-mpjj-4688-3fxg · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 01 DEC 22:05Z
    Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` in Multiples parameters
    cvelistv5