# CVE-2025-66301

## Summary

- **CVE ID:** CVE-2025-66301
- **Severity:** HIGH
- **CVSS Score:** 8.6 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-285
- **Published:** Dec 1, 2025
- **Last Modified:** Mar 13, 2026

## Description

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, due to improper authorization checks when modifying critical fields on a POST request to /admin/pages/{page_name}, an editor with only permissions to change basic content on the form is now able to change the functioning of the form through modifying the content of the data[_json][header][form] which is the YAML frontmatter which includes the process section which dictates what happens after a user submits the form which include some important actions that could lead to further vulnerabilities. This vulnerability is fixed in 1.8.0-beta.27.

## Affected Products

- getgrav — grav (< 1.8.0-beta.27)

## References

- [CNA](https://github.com/getgrav/grav/security/advisories/GHSA-v8x2-fjv7-8hjh)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.34%
- **EPSS Percentile:** 69.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._