5.6 Medium

Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.11 and earlier allows low privileged attacker to…

CVE-2026-115425

Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.11 and earlier allows low privileged attacker to execute Javascript in the context of another user visiting a specific page or clicking on a specifically crafted link.

Assessment

CVSS: 5.6 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 26 October 2026
Last updated: 26 October 2026
Weakness: CWE-79
Assigner: vulnerability@ncsc.ch

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:I/V:C/RE:M/U:Amber

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