{"id":"CVE-2019-12581","aliases":["EUVD-2019-4175","GHSA-5f8r-3j92-cp9m"],"status":"published","title":"A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in...","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.","severity":{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.064,"percentile":0.93721,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2019-06-27T14:10:08Z","modified":"2026-06-17T02:14:54Z","exploits":[{"source":"nuclei","id":"CVE-2019-12581","title":"Zyxel ZyWal/USG/UAG Devices - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-12581.yaml"}],"products":[{"vendor":"zyxel","product":"uag2100_firmware"},{"vendor":"zyxel","product":"uag4100_firmware"},{"vendor":"zyxel","product":"uag5100_firmware"},{"vendor":"zyxel","product":"usg1100_firmware"},{"vendor":"zyxel","product":"usg110_firmware"},{"vendor":"zyxel","product":"usg1900_firmware"},{"vendor":"zyxel","product":"usg210_firmware"},{"vendor":"zyxel","product":"usg2200-vpn_firmware"},{"vendor":"zyxel","product":"usg310_firmware"}],"references":[{"url":"https://www.zyxel.com/us/en/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtml","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://sec-consult.com/en/blog/advisories/reflected-cross-site-scripting-in-zxel-zywall/index.html","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12581"},{"url":"https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss"},{"url":"https://www.zyxel.com/us/en"},{"url":"https://github.com/advisories/GHSA-5f8r-3j92-cp9m"}],"sources":{"cve":[{"id":"CVE-2019-12581","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.","status":"published","published":"2019-06-27T14:10:08Z","modified":"2024-08-04T23:24:39.189Z","updated_at":"2026-11-02T14:20:24.025419Z"}],"euvd":[{"id":"EUVD-2019-4175","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.","status":"published","published":"2019-06-27T14:10:08Z","modified":"2024-08-04T23:24:39Z","updated_at":"2026-11-03T02:40:45.434408Z"}],"ghsa":[{"id":"GHSA-5f8r-3j92-cp9m","title":"A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in...","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.","status":"published","published":"2022-05-24T16:48:44Z","modified":"2024-04-04T01:03:16Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:55:55.00861Z"}],"nvd":[{"id":"CVE-2019-12581","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.","status":"published","published":"2019-06-27T15:15:09.17Z","modified":"2026-06-17T02:14:54.48Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:17.695191Z"}]}}