Unrated severityNVD Advisory· Published Feb 15, 2026· Updated Mar 5, 2026
OPNsense 19.1 Reflected XSS via proxy endpoint
CVE-2019-25376
Description
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- forum.opnsense.org/index.phpmitrepatch
- www.exploit-db.com/exploits/46351mitreexploit
- www.vulncheck.com/advisories/opnsense-reflected-xss-via-proxy-endpointmitrethird-party-advisory
- opnsense.orgmitreproduct
News mentions
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