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Not in CISA KEV
HIGH severity

Grav CMS Cross-Site Request Forgery (CSRF)GHSA-fqff-vcvx-68h3

HIGH

GHSA-fqff-vcvx-68h3 is a high-severity (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in getgrav/grav. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for getgrav/grav — see the affected versions and patch details below.

Also known asCVE-2020-29553
Published
Updated
Affected
2 pkgs
Patched
1 / 2
Exploits
1 known
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs72th percentile — riskier than 72% of all scored CVEsHighest risk
0.00%0.62%1.24%1.86%0.2%1.4%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

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 Scheduler in Grav CMS through 1.7.0-rc.17 allows an attacker to execute a system command by tricking an admin into visiting a malicious website (CSRF).

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 · 28 configurations
Application
grav cmsgetgrav
≤ 1.6.31
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 Scheduler in Grav CMS through 1.7.0-rc.17 allows an attacker to exec…

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

    A fix is available for GHSA-fqff-vcvx-68h3; check the affected-versions list above or the advisory for the patched release of getgrav/grav, then make sure no transitive dependency still pins the vulnerable range.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

The Scheduler in Grav CMS through 1.7.0-rc.17 allows an attacker to execute a system command by tricking an admin into visiting a malicious website (CSRF).
O3 Security · Impact-Aware SCA

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Grav CMS Cross-Site Request Forgery (CSRF) (High 8.8)