CVE-2026-39955

CriticalCVSS 9.8

Published: 24/06/2026(UTC)Updated: 26/06/2026(UTC)Translated: 27/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.32%

23th percentile — higher than 23% of all known CVEs

Summary

Cacti versions 1.2.30 and prior contain a pre-authentication SQL injection vulnerability via unanchored FILTER_VALIDATE_REGEXP in graph_view.php. This issue has been fixed in version 1.2.31.

Risk Assessment

An unauthenticated attacker can execute arbitrary SQL queries, potentially leading to data leakage, modification, or full system compromise.

Recommendation

Immediately update Cacti to version 1.2.31 or later. If updating is not possible, restrict access to graph_view.php.

Original NVD description (English source)

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have pre-authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php. This issue has been fixed in version 1.2.31.