VULNERABILITY INTELLIGENCE

CVE-2019-25371

CVSS score6.1 MEDIUM

EPSS probability0.29%

CISA KEVNot currently listed

Published2026-02-15

Last modified2026-06-17

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

Description

OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted POST requests to the diag_ping.php endpoint with script payloads in the host parameter to execute arbitrary JavaScript in users' browsers.

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