CVE-2019-25374

OPNsense 19.1 Reflected XSS via vpn_ipsec_settings.php

CVSS 5.1 MEDIUMEPSS 0.3%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

15 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting the passthrough_networks parameter in vpn_ipsec_settings.php. Attackers can craft POST requests with JavaScript payloads in the passthrough_networks parameter to execute arbitrary code in users' browsers.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Affected products

Opnsense · OPNsense

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References

https://forum.opnsense.org/index.php?topic=11469.0 https://opnsense.org https://www.exploit-db.com/exploits/46351 https://www.vulncheck.com/advisories/opnsense-reflected-xss-via-vpnipsecsettingsphp