CVE-2021-34257: Wpanel CMS Project Wpanel CMS

High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Multiple Remote Code Execution (RCE) vulnerabilities exist in WPanel 4 4.3.1 and below via a malicious PHP file upload to (1) Dashboard's Avatar image, (2) Posts Folder image, (3) Pages Folder image and (4) Gallery Folder image.

Affected products

• Wpanel CMS Project Wpanel CMS: up to and including 4.3.1

Published 2022-03-31. Last modified 2026-06-17.