CVE-2026-49131

OPNsense prior to 26.1.9 is affected by a stored XSS in the firewall rule description field (via the filter API). Unsanitized descriptions are persisted and later rendered by opnsense_bootgrid.js using innerHTML, allowing an authenticated attacker with firewall rule management privileges to execu...

CVE-2026-49131 OPNsense < 26.1.9 Stored XSS via Firewall Rule Description Field

OPNsense before 26.1.9 contains a stored cross-site scripting vulnerability that allows authenticated attackers with firewall rule management privileges to inject arbitrary HTML or JavaScript by embedding payloads in the firewall rule description field via the filter API endpoint. The unsanitized...

CVE-2026-49131 OPNsense < 26.1.9 Stored XSS via Firewall Rule Description Field

OPNsense before 26.1.9 contains a stored cross-site scripting vulnerability that allows authenticated attackers with firewall rule management privileges to inject arbitrary HTML or JavaScript by embedding payloads in the firewall rule description field via the filter API endpoint. The unsanitized...