VulnerabilityDeferred

CVE-2026-42607

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.

CRITICAL 9.1EPSS 3.94%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS: 3.94% probability · 90th percentile
CISA KEV: Not listed
Weakness: CWE-94
Source: security-advisories@github.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.