CVE-2025-34177: Pfsense

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

In pfSense CE /suricata/suricata_flow_stream.php, the value of the policy_name parameter is not sanitized of HTML-related strings/characters before being directly displayed. This can result in stored cross-site scripting. The attacker must be authenticated with at least "WebCfg - Services: suricata package" permissions.

Affected products

• Pfsense Pfsense: before 2.8.0 (fixed in 2.8.0)

Published 2025-09-09. Last modified 2026-07-14.