CVE-2016-20052: Snewscms Snews

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Snews CMS 1.7 contains an unrestricted file upload vulnerability that allows unauthenticated attackers to upload arbitrary files including PHP executables to the snews_files directory. Attackers can upload malicious PHP files through the multipart form-data upload endpoint and execute them by accessing the uploaded file path to achieve remote code execution.

Affected products

• Snewscms Snews: up to and including 1.7

Published 2026-04-04. Last modified 2026-07-21.