VULNERABILITY INTELLIGENCE

CVE-2019-25377

CVSS score5.4 MEDIUM

EPSS probability0.28%

CISA KEVNot currently listed

Published2026-02-15

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

OPNsense 19.1 contains a reflected cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject malicious scripts via the value parameter. Attackers can craft POST requests with script payloads in the value parameter to execute JavaScript in the context of authenticated user sessions.

Weakness classification

disclosure@vulncheck.com: CWE-79

Primary references

disclosure@vulncheck.com — Release Notes
disclosure@vulncheck.com — Product
disclosure@vulncheck.com — Exploit, Third Party Advisory, VDB Entry
disclosure@vulncheck.com — Broken Link