CVE-2025-66300

Name: CVE-2025-66300
Creator: NVD / NIST
Published: 2025-12-01T22:15:49.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2025-66300 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. Grav is a file-based Web platform. Prior to 1.8.0-beta.27, A low privilege user account with page editing privilege can read any server files using "Frontmatter" form. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, A low privilege user account with page editing privilege can read any server files using "Frontmatter" form. This includes Grav user account files (/grav/user/accounts/*.yaml), which store hashed user password, 2FA secret, and the password reset token. This can allow an adversary to compromise any registered account by resetting a password for a user to get access to the password reset token from the file or by cracking the hashed password. This vulnerability is fixed in 1.8.0-beta.27.

Metrics

CVSS 3.1

8.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

EPSS Probability

0.39%

30.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions	Update
Getgrav	Grav	< 1.8.0	—
Getgrav	Grav	1.8.0	Beta1

References

https://github.com/getgrav/grav/commit/ed640a13143c4177af013cf001969ed2c5e197eePatch
https://github.com/getgrav/grav/security/advisories/GHSA-p4ww-mcp9-j6f2Exploit, Third Party Advisory

Timeline

Published: Dec 1, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66300?

How severe is CVE-2025-66300?

CVE-2025-66300 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66300?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66300?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST