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ID:12693 - Exploit for Improper access control in Grav CMS - CVE-2025-66301
ID:12693 - Exploit for Improper access control in Grav CMS - CVE-2025-66301
Published: May 5, 2026
Vulnerability identifier: #VU130065
Vulnerability risk: Low
CVE-ID: CVE-2025-66301
CWE-ID: CWE-284
Exploitation vector: Remote access
Vulnerable software:
Grav CMS
Grav CMS
Link to public exploit:
Vulnerability description
The vulnerability allows a remote user to modify form processing actions.
The vulnerability exists due to improper access control in /admin/pages/{page_name} when handling crafted POST requests that modify data[_json][header][form]. A remote user can send a specially crafted request to modify form processing actions.
Exploitation requires the Admin and Form plugins to be installed.
Remediation
Install security update from vendor's website.