{"id":"CVE-2019-25375","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-25375","generatedAt":"2026-10-27T23:37:56.208Z","title":"OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter.","description":"OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter. Attackers can send POST requests to the monit interface with JavaScript payloads in the mailserver parameter to execute arbitrary code in users' browsers.","published":"2026-02-15T14:16:07.000Z","lastModified":"2026-06-17T02:32:12.000Z","status":"Analyzed","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":5.1,"severity":"MEDIUM","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-79"],"affected":["opnsense/opnsense"],"epss":{"score":0.00416,"percentile":0.35618,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://forum.opnsense.org/index.php?topic=11469.0","tags":["Release Notes"],"source":"disclosure@vulncheck.com"},{"url":"https://opnsense.org","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/46351","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/opnsense-reflected-xss-via-monit-interface","tags":["Third Party Advisory"],"source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-25375","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}