CVE-2025-66311
BaseFortify
Publication date: 2025-12-01
Last updated on: 2025-12-03
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| getgrav | grav-plugin-admin | to 1.10.50 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Grav admin plugin prior to version 1.11.0-beta.1. It occurs in the /admin/pages/[page] endpoint, where attackers can inject malicious scripts into certain parameters (data[header][metadata], data[header][taxonomy][category], and data[header][taxonomy][tag]). These scripts are stored in the page frontmatter and executed automatically when the affected page is accessed or rendered in the admin interface.
How can this vulnerability impact me? :
This vulnerability can allow attackers to execute malicious scripts within the administrative interface of the Grav application. This can lead to unauthorized actions, data theft, or compromise of the administrative environment whenever an affected page is accessed or rendered.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade the Grav admin plugin to version 1.11.0-beta.1 or later, as this version contains the fix for the Stored Cross-Site Scripting (XSS) vulnerability in the /admin/pages/[page] endpoint.