What is the CVSS score of CVE-2025-66295?

CVE-2025-66295 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Grav are affected by CVE-2025-66295?

A path traversal vulnerability in Grav CMS allows authenticated users with account creation privileges to write sensitive user credentials (passwords, two-factor secrets, email addresses) to…. A patch is available.

How to fix or mitigate CVE-2025-66295?

Within 24 hours: Inventory all Grav installations and identify those running versions prior to 1.8.0-beta.27; restrict user creation privileges to trusted administrators only. Within 7 days: Apply the vendor patch to upgrade all affected Grav instances to version 1.8.0-beta.27 or later; audit recent user creation activities for suspicious usernames containing path traversal sequences. Within 30 days: Conduct a full filesystem scan for YAML account files in unexpected locations; reset passwords and two-factor secrets for all accounts created during the vulnerable period; review access logs for unauthorized account access.

Grav CVE-2025-66295

EUVD-2025-200082 HIGH

Path Traversal (CWE-22)

2025-12-01 security-advisories@github.com

GHSA-h756-wh59-hhjv

Path Traversal Grav

8.8

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

8.8 HIGH

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 13:34 euvd

EUVD-2025-200082

Analysis Generated

Mar 15, 2026 - 13:34 vuln.today

Patch released

Mar 15, 2026 - 13:34 nvd

Patch available

CVE Published

Dec 01, 2025 - 21:15 nvd

HIGH 8.8

DescriptionGitHub Advisory

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, when a user with privilege of user creation creates a new user through the Admin UI and supplies a username containing path traversal sequences (for example ..\Nijat or ../Nijat), Grav writes the account YAML file to an unintended path outside user/accounts/. The written YAML can contain account fields such as email, fullname, twofa_secret, and hashed_password. This vulnerability is fixed in 1.8.0-beta.27.

Analysis

Technical ContextAI

Path traversal allows an attacker to access files outside the intended directory by manipulating file paths with sequences like '../'.

RemediationAI

A vendor patch is available — apply it immediately. Validate and sanitize file path inputs. Use a whitelist of allowed files or directories. Implement chroot jails or containerization.