CVE-2023-53952: Dotclear

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Dotclear 2.25.3 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files with .phar extension through the blog post creation interface. Attackers can upload files containing PHP system commands that execute when the uploaded file is accessed, enabling arbitrary code execution on the server.

Affected products

• Dotclear Dotclear: version 2.25.3 only

Published 2025-12-19. Last modified 2026-06-17.