What is CVE-2020-29553?

CVE-2020-29553 is a high-severity vulnerability in Getgrav Grav Cms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-15.

How severe is CVE-2020-29553?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-29553 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Getgrav Grav Cms

CVE-2020-29553

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).

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-03-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Getgrav Grav Cms — versions 1.7.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilit… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-29553?: CVE-2020-29553 is a high-severity vulnerability in Getgrav Grav Cms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-03-15.
How severe is CVE-2020-29553?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-29553 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.