CVE-2019-25372

MEDIUM 6.1CVE-2019-25372 · Published 15/02/2026 · updated 17/06/2026

In short

CVE-2019-25372 is a MEDIUM (CVSS 6.1) vulnerability affecting opnsense (opnsense).
Chance of exploitation in the next 30 days (EPSS): 0.29%, higher than 21.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
opnsense opnsense	`= 19.1`	No fix yet

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 payloads through POST requests to diag_traceroute.php to execute arbitrary JavaScript in the context of a user's browser session.

References

forum.opnsense.org/index.php · Release Notes
opnsense.org · Product
exploit-db.com/exploits/46351 · Exploit
vulncheck.com/advisories/opnsense-reflected-xss-via-diagtraceroutephp · Broken Link

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Package

Affected versions

Patched versions

opnsense

= 19.1

No fix yet

Description

More vulnerabilities in opnsense

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