CVE-2025-66301
9.6 · CRITICALOverview
CVE-2025-66301 is a critical-severity vulnerability affecting getgrav grav. It was published on December 1, 2025 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from getgrav. Update grav to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| getgrav | grav | >= 0, < 1.8.0 | Affected |
Frequently Asked Questions
What is CVE-2025-66301?
CVE-2025-66301 is a critical-severity vulnerability affecting getgrav grav. It was published on December 1, 2025 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
How severe is CVE-2025-66301?
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-66301?
Check the references section for vendor advisories and patches from getgrav. Update grav to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-66301?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-66301 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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