CVE-2025-63830: Cksource Ckfinder

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. An attacker can upload a crafted SVG containing active content.

Affected products

• Cksource Ckfinder: version 1.4.3 only

Published 2025-11-14. Last modified 2026-06-17.