RCE in Getgrav Grav

CVE-2026-42607

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, an authenticated user with administrative privileges can achieve Remote Code Execution (RCE) by uploading a specially crafted ZIP file through the "Direct Install" tool. While the system attempts to block direct .php file uploads, it fails to inspect the contents of uploaded ZIP archives. Once a malicious plugin is extracted, it can execute arbitrary PHP code or drop a persistent web shell on the server. This vulnerability is fixed in 2.0.0-beta.2.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-42607: fell from 0.039 to 0.023.

EPSS over last 30 days · oldest: 0.039 · newest: 0.023 · change: -0.017

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42607?
CVE-2026-42607 is a critical-severity vulnerability in Getgrav Grav, classified under Code Injection. CVSS score: 9.1/10. Published 2026-05-11.
How severe is CVE-2026-42607?
Critical severity. CVSS v3 base score is 9.1 out of 10.