{"id":"CVE-2021-27310","aliases":["EUVD-2021-14071","GHSA-gwcx-pjgx-wqm5"],"status":"published","title":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","description":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","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":"2026-11-11","score":0.02816,"percentile":0.86725,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-03-23T13:27:19Z","modified":"2026-06-17T03:44:38Z","exploits":[{"source":"nuclei","id":"CVE-2021-27310","title":"Clansphere CMS 2011.4 - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-27310.yaml"}],"products":[{"vendor":"csphere","product":"clansphere"}],"references":[{"url":"https://github.com/xoffense/POC/blob/main/Clansphere%202011.4%20%22language%22%20xss.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27310"},{"url":"https://github.com/advisories/GHSA-gwcx-pjgx-wqm5"}],"sources":{"cve":[{"id":"CVE-2021-27310","description":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","status":"published","published":"2021-03-23T13:27:19Z","modified":"2024-08-03T20:48:16.149Z","updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14071","description":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","status":"published","published":"2021-03-23T13:27:19Z","modified":"2024-08-03T20:48:16Z","updated_at":"2026-11-03T03:24:49.368497Z"}],"ghsa":[{"id":"GHSA-gwcx-pjgx-wqm5","title":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","description":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","status":"published","published":"2022-05-24T17:45:05Z","modified":"2023-01-29T05:06:07Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:57.128816Z"}],"nvd":[{"id":"CVE-2021-27310","description":"Clansphere CMS 2011.4 allows unauthenticated reflected XSS via \"language\" parameter.","status":"published","published":"2021-03-23T14:15:13.413Z","modified":"2026-06-17T03:44:38.05Z","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":"2026-11-02T14:06:50.805771Z"}]}}