CVE-2026-94104 [HIGH] – NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager

NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible image/data/ directory and execute them for remote code execution.