CVE-2026-39900: Cacti

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Reflected XSS via tab parameter in the auth_profile.php JavaScript context. This issue has been fixed in version 1.2.31.

Affected products

• Cacti Cacti: before 1.2.31 (fixed in 1.2.31)

Published 2026-06-24. Last modified 2026-06-25.