What’s Vulnerable › Vulnerabilities

CVE-2025-66295: Grav vulnerable to Path traversal / arbitrary YAML write via user creation leading to Account Takeover / System Corruption

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-01 · updated 2026-09-26
• Weakness: CWE-22

Description

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.

Affected products

• getgrav grav: from 1.7.49.5 before 1.8.0; 1.8.0-beta1, 1.8.0-beta10, 1.8.0-beta11, 1.8.0-beta12, 1.8.0-beta13, 1.8.0-beta14 (+20) — fixed in 1.8.0

How to fix

Upgrade to a fixed version: getgrav grav 1.8.0. Check the vendor advisory for mitigations.

References

• https://github.com/getgrav/grav/commit/3462d94d575064601689b236508c316242e15741
• https://github.com/getgrav/grav/security/advisories/GHSA-h756-wh59-hhjv

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