{"id":"CVE-2021-33904","aliases":["EUVD-2021-20576","GHSA-w8x8-8rp7-r92g"],"status":"disputed","title":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is...","description":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states \"there are configurable security flags and we are unable to reproduce them with the available information.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.09972,"percentile":0.95637,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-07T11:40:46Z","modified":"2026-06-17T03:55:21Z","exploits":[{"source":"exploitdb","id":"EDB-49980","title":"Accela Civic Platform 21.1 - 'servProvCode' Cross-Site-Scripting (XSS)","type":"webapps","platform":"multiple","date":"2021-06-11","url":"https://www.exploit-db.com/exploits/49980"},{"source":"nuclei","id":"CVE-2021-33904","title":"Accela Civic Platform \u003c=21.1 - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-33904.yaml"}],"products":[{"vendor":"accela","product":"civic_platform"}],"references":[{"url":"https://gist.github.com/0xx7/3d934939d7122fe23db11bc48eda9d21","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/163093/Accela-Civic-Platorm-21.1-Cross-Site-Scripting.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33904"},{"url":"https://github.com/advisories/GHSA-w8x8-8rp7-r92g"}],"sources":{"cve":[{"id":"CVE-2021-33904","description":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states \"there are configurable security flags and we are unable to reproduce them with the available information.","status":"disputed","published":"2021-06-07T11:40:46Z","modified":"2024-08-04T00:05:51.668Z","updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20576","description":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states \"there are configurable security flags and we are unable to reproduce them with the available information.","status":"published","published":"2021-06-07T11:40:46Z","modified":"2024-08-04T00:05:51Z","updated_at":"2026-11-03T03:24:33.318275Z"}],"ghsa":[{"id":"GHSA-w8x8-8rp7-r92g","title":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is...","description":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS.","status":"published","published":"2022-05-24T19:04:16Z","modified":"2024-03-30T05:01:44Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:55:45.190481Z"}],"nvd":[{"id":"CVE-2021-33904","description":"In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states \"there are configurable security flags and we are unable to reproduce them with the available information.","status":"disputed","published":"2021-06-07T12:15:09.107Z","modified":"2026-06-17T03:55:21.397Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/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":"2026-11-02T14:06:54.439974Z"}]}}