CVE-2026-56127
pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Rules: Edit privilege to inject arbitrary JavaScr
CVSS
5.4
Medio
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 3 sept 2026 · Última mod.: 3 sept 2026 · CWE-79
Sin historial EPSS suficiente todavía.
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.
- docs.netgate.comhttps://docs.netgate.com/downloads/pfSense-SA-26_10.webgui.asc
- docs.netgate.comhttps://docs.netgate.com/pfsense/en/latest/releases/2-9-0.html
- docs.netgate.comhttps://docs.netgate.com/pfsense/en/latest/releases/26-07.html
- www.vulncheck.comhttps://www.vulncheck.com/advisories/pfsense-plus-ce-stored-xss-via-firewall-rules-edit-php