PT-2025-48560 · Grav · Grav

Published 2025-12-01 · Updated 2025-12-26 · CVE-2025-66301

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Grav versions prior to 1.8.0-beta.27

Description Grav is a file-based Web platform. Improper authorization checks when modifying critical fields on a POST request to the /admin/pages/{page name} endpoint allow an editor with limited permissions to alter the functionality of forms. This is achieved by modifying the data[ json][header][form] parameter, which contains YAML frontmatter including the process section. The process section controls actions performed after form submission, potentially leading to further issues. The page name is a variable representing the target page.

Recommendations Update to version 1.8.0-beta.27 or later.

Exploit

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2025-66301

GHSA-V8X2-FJV7-8HJH

Affected Products

Grav

References · 9

• 🔥 https://github.com/getgrav/grav/security/advisories/GHSA-v8x2-fjv7-8hjh · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66301.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-66301 · Security Note
• https://osv.dev/vulnerability/CVE-2025-66301 · Vendor Advisory
• https://t.me/CVEtracker/38592 · Telegram Post
• https://twitter.com/SecReportCVE/status/2004607038752448849 · Twitter Post
• https://twitter.com/dailycve/status/1996273357872918897 · Twitter Post
• https://twitter.com/CVEnew/status/1995608454711664883 · Twitter Post
• https://twitter.com/transilienceai/status/1995697321267363847 · Twitter Post