CVE-2019-15862: Cksource Ckfinder

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

An issue was discovered in CKFinder through 2.6.2.1. Improper checks of file names allows remote attackers to upload files without any extension (even if the application was configured to accept files only with a defined set of extensions). This affects CKFinder for ASP, CKFinder for ASP.NET, CKFinder for ColdFusion, and CKFinder for PHP.

Affected products

• Cksource Ckfinder: before 2.6.3 (fixed in 2.6.3)

Published 2019-09-26. Last modified 2026-06-17.