CVE-2026-58394

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, src/www/systemadvancedadmin.php reads certificate records into $acert but omits that array from legacyhtmlescapeformdata before rendering each certificate descr value in the SSL Certificate selector. The...

CVE-2026-58394 OPNsense: Stored XSS in Administration Settings via Certificate Description

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, src/www/systemadvancedadmin.php reads certificate records into $acert but omits that array from legacyhtmlescapeformdata before rendering each certificate descr value in the SSL Certificate selector. The...

CVE-2026-58394

The OPNsense firewall and routing platform is vulnerable to Stored Cross-Site Scripting (XSS) in versions prior to 26.1.11 . The vulnerability exists because src/www/system_advanced_admin.php fails to include the $a_cert array in the legacy_html_escape_form_data() function before rendering certif...