CVE-2026-41937 Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload
Super admins can execute arbitrary PHP code by uploading malicious plugin ZIP files, requiring an upgrade to secure the application.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-41937?
CVE-2026-41937 is a high-severity vulnerability in givanz Vvveb, published on 14 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-41937?
How do I fix CVE-2026-41937?
No fix has been published for CVE-2026-41937 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-41937 being exploited?
There is no known exploitation of CVE-2026-41937 in the wild and no public exploit code.
Sources
Also known as GHSA-gv85-3994-qprw.