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HIGH severity

GHSA-gpmf-q5jh-hjx4 — getgrav/grav

HIGH

GHSA-gpmf-q5jh-hjx4 is a high-severity (CVSS 8.1) Path Traversal vulnerability in getgrav/grav. 1 public exploit reference exists, so weaponization risk is real. A fix is available for getgrav/grav — see the affected versions and patch details below.

Grav CMS Arbitrary File Deletion

Also known asCVE-2020-29555
Published
May 24, 2022
Updated
Apr 24, 2024
Affected
2 pkgs
Patched
1 / 2
Exploits
1 known
Exploitation data as of Sep 27, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-gpmf-q5jh-hjx4 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

2 pkgs affected
🐘getgrav/grav🐘getgrav/grav

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

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.)

Affected Packages

2 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistgetgrav/grav≥ 1.7.0-beta.1No fix
🐘Packagistgetgrav/gravall versions1.6.30composer require getgrav/grav:^1.6.30

Affected Products

1 product · 29 configurations
Application
grav cmsgetgrav
< 1.7.0
1 version
1.7.0
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The BackupDelete functionality in Grav CMS through 1.7.0-rc.17 allows an…

blog.bssi.frNVDMar 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for getgrav/grav, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    No patched version of getgrav/grav has shipped for GHSA-gpmf-q5jh-hjx4 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

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.)
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GHSA-gpmf-q5jh-hjx4: getgrav/grav (High 8.1) | O3 Security