# CVE-2026-6249

> Vulnerability · severity: **HIGH** (CVSS 8.8).

## 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.

## Key facts

- **CVE ID:** CVE-2026-6249
- **Published:** 2026-04-20
- **CVSS severity:** HIGH
- **CVSS base score:** 8.8
- **CWE codes:** CWE-434

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6249

## Citation

> AI Analytics. CVE-2026-6249. Retrieved 2026-07-20 from https://api.ai-analytics.org/cve/CVE-2026-6249. Derived from NIST NVD. Licensed CC0.

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