CVE-2026-6249 Vvveb CMS 1.0.8.2 Remote Code Execution via Media Upload
Authenticated attackers can execute arbitrary code by uploading a PHP webshell with a .phtml extension, bypassing extension restrictions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6249?
CVE-2026-6249 is a high-severity vulnerability in Vvveb CMS, published on 20 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vvveb CMS 1.0.8.2 contains a remote code execution vulnerability in its media upload handler that allows authenticated attackers to execute arbitrary operating system commands by uploading a PHP webshell with a .phtml extension. Attackers can bypass the extension deny-list and upload malicious files to the publicly accessible media directory, then request the file over HTTP to achieve full server compromise.
Weakness: CWE-434
Which versions are affected by CVE-2026-6249?
How do I fix CVE-2026-6249?
No fix has been published for CVE-2026-6249 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6249 being exploited?
There is no known exploitation of CVE-2026-6249 in the wild and no public exploit code.
Sources
Also known as GHSA-7x75-92hx-vr86.