CVE-2026-41937 HIGH

CVE-2026-41937: Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload

Vendor Givanz
Product Vvveb
Weakness CWE-434 · Unrestricted file upload
Published May 14, 2026
Last update May 25, 2026

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Vvveb before 1.0.8.3 contains an unrestricted file upload vulnerability in the plugin upload endpoint that allows super_admin users to execute arbitrary PHP code by uploading a malicious plugin ZIP file. Attackers can craft a ZIP containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code, which executes as the web server user once accessed via subsequent unauthenticated HTTP requests to the plugin's public path.

Key dates

02Disclosure timeline

May 14, 2026 CVE published
May 25, 2026 Record updated