Medium (6.1) in sunhater kcfinder. EPSS 1.2% chance of exploitation in the next 30 days.
A cross-site scripting (XSS) vulnerability in upload.php in SunHater KCFinder 3.20-test1, 3.20-test2, 3.12, and earlier allows remote attackers to inject arbitrary web script or HTML via the CKEditorFuncNum parameter.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)