CVE-2026-56127 — pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via firewall_rules_edit.php
pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Rules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firew…
Published: 2026-09-03 · CVSS: 5.1 · CVSS 4.0
pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Rules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firewall_rules_edit.php. The firewall rule description is stored in the pfSense XML configuration with only backslash-escaping applied and no HTML sanitization, then rendered without encoding in the firewall log table in /status_logs_filter.php. The payload executes in the browser of any user with the Status: Logs: Firewall privilege who views the affected log entries.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7