What is CVE-2026-6249?

CVE-2026-6249 is a high-severity vulnerability in Vvveb Cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-20.

How severe is CVE-2026-6249?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Vvveb Cms

CVE-2026-6249

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…

Vulnerability class: Unrestricted File Upload

EPSS: 0.000 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Vvveb Cms — versions 1.0.8, 1.0.8.2

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Patch Commit (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-6249?: CVE-2026-6249 is a high-severity vulnerability in Vvveb Cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-20.
How severe is CVE-2026-6249?: High severity. CVSS v3 base score is 8.8 out of 10.