CVE-2026-6257
CriticalSummary
Vvveb CMS version 1.0.8.2 contains a remote code execution vulnerability in its media management functionality. A missing return statement in the file rename handler allows authenticated attackers to rename files to blocked extensions .php or .htaccess.
Risk Assessment
Attackers can exploit this vulnerability to inject Apache directives, allowing them to execute arbitrary operating system commands as the www-data user. This poses a significant threat to the integrity and security of the system.
Recommendation
It is recommended to update Vvveb CMS to the latest version to eliminate this vulnerability. Additionally, implement proper access controls for file management and monitor system logs for unauthorized activities.
Other vulnerabilities in Vvveb CMS v1.0.8.2
See all- CVE-2026-46408High
Vvveb is a powerful and easy to use content management system (CMS) that had a vulnerability in the checkout endpoint prior to version 1.0.8.3. It allowed logged-in attackers to reuse another user's cart data in their own checkout session.
- CVE-2026-46407High
Vvveb is a powerful and easy to use content management system (CMS) that prior to version 1.0.8.3 allowed an authenticated administrator to load another administrator's API token list by supplying that user's admin_id. This can disclose sensitive API tokens belonging to other administrators.
- CVE-2026-45800High
In Vvveb CMS prior to version 1.0.8.3, there is an SQL injection issue in the user order history page. An authenticated user can exploit URL parameters to manipulate SQL queries.
- CVE-2026-44826High
Vvveb CMS prior to version 1.0.8.2 does not validate the sign of the quantity parameter on the cart-add endpoint. Submitting a negative integer was accepted by the server, leading to negative values in order calculations.
- CVE-2026-6249High
Vvveb CMS version 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.
Original NVD description (English source)
Vvveb CMS v1.0.8.2 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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS