CVE-2026-42607
Grav: Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature
CRITICAL 9.1EPSS 2.3%
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.
- Affected
- getgrav · grav
- CVSS v3.1 GITHUB
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - EPSS
- 2.25% chance of exploitation in the next 30 days, 83rd percentile
- Published
- 2026-05-11
- Updated
- 2026-05-12