What’s Vulnerable › Vulnerabilities

CVE-2026-42607: Grav: Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-11 · updated 2026-10-26
• Weakness: CWE-94

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.

Affected products

• getgrav grav: before 2.0.0-beta.2

References

• https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
• https://github.com/getgrav/grav/security/advisories/GHSA-w48r-jppp-rcfw
• https://github.com/getgrav/grav/security/advisories/GHSA-w48r-jppp-rcfw

Get alerted when CVE-2026-42607 or the next vulnerability affects your stack