{"id":"CVE-2019-12581","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12581","generatedAt":"2026-10-28T23:58:32.856Z","title":"A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.","description":"A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.","published":"2019-06-27T15:15:09.000Z","lastModified":"2026-06-17T02:14:54.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["zyxel/uag2100 firmware","zyxel/uag4100 firmware","zyxel/uag5100 firmware","zyxel/usg110 firmware","zyxel/usg210 firmware","zyxel/usg310 firmware","zyxel/usg1100 firmware","zyxel/usg1900 firmware","zyxel/usg2200-vpn firmware"],"epss":{"score":0.064,"percentile":0.93638,"date":"2026-10-27","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 (6.40%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sec-consult.com/en/blog/advisories/reflected-cross-site-scripting-in-zxel-zywall/index.html","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.zyxel.com/us/en/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sec-consult.com/en/blog/advisories/reflected-cross-site-scripting-in-zxel-zywall/index.html","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zyxel.com/us/en/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12581","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."}