Description

Vvveb CMS v1.0.8 contains a remote code execution vulnerability in its media management functionality where a missing return statement in the file rename handler allows authenticated attackers to rename files to blocked extensions .php or .htaccess. Attackers can exploit this logic flaw by first uploading a text file and renaming it to .htaccess to inject Apache directives that register PHP-executable MIME types, then uploading another file and renaming it to .php to execute arbitrary operating system commands as the www-data user.

INFO

Published Date :

2026-04-20T19:09:45.927Z

Last Modified :

2026-04-21T19:50:26.897Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-6257 vulnerability.

Vendors Products
Vvveb
  • Vvveb
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-6257.

URL Resource
https://github.com/givanz/Vvveb/commit/6fb8eaa998265e33e8802cbc220d8859dbc144f2 cve-icon cve-icon
https://www.vulncheck.com/advisories/vvveb-cms-remote-code-execution-via-media-management cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact