CVE-2026-42607
Grav: Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature
CVSS Score
9.1
EPSS Score
0.2%
EPSS Percentile
46th
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.
| CWE | CWE-94 |
| Vendor | getgrav |
| Product | grav |
| Published | May 11, 2026 |
| Last Updated | May 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
getgrav / grav
< 2.0.0-beta.2