PT-2026-33837 · Vvveb · Vvveb Cms

Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6249

Mitre

CVSS v3.1

8.8

High

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vvveb CMS 1.0.8 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.

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2026-6249

Affected Products

Vvveb Cms

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-6249 · Security Note
• https://github.com/givanz/Vvveb/commit/23ac0e8c758d80f3c4d9224763c8b2359648270e · Patch
• https://vulncheck.com/advisories/vvveb-cms-remote-code-execution-via-media-upload · Note