CVE-2019-25376

OPNsense 19.1 Reflected XSS via proxy endpoint

CVSS 5.1 MEDIUMEPSS 0.4%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.4%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 unauthenticated attackers to inject malicious scripts by submitting crafted payloads through the ignoreLogACL parameter. Attackers can send POST requests to the proxy endpoint with JavaScript code in the ignoreLogACL parameter to execute arbitrary scripts 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-proxy-endpoint