{"id":"CVE-2021-34815","aliases":["EUVD-2021-21462","GHSA-jh87-7j82-9cr2"],"status":"published","title":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the...","description":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00836,"percentile":0.58024,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-18T11:01:55Z","modified":"2026-06-17T03:56:37Z","products":[{"vendor":"checksec","product":"canopy"}],"references":[{"url":"https://www.checksec.com/canopy.html","tags":["x_refsource_MISC","x_transferred","Product"]},{"url":"https://www.compass-security.com/en/research/advisories","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.compass-security.com/fileadmin/Research/Advisories/2021-10_CSNC-2021-015-Checksec_Canopy_HTLM_Injection.txt","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34815"},{"url":"https://github.com/advisories/GHSA-jh87-7j82-9cr2"}],"sources":{"cve":[{"id":"CVE-2021-34815","description":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.","status":"published","published":"2021-06-18T11:01:55Z","modified":"2024-08-04T00:26:54.056Z","updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21462","description":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.","status":"published","published":"2021-06-18T11:01:55Z","modified":"2024-08-04T00:26:54Z","updated_at":"2026-11-03T03:24:31.977228Z"}],"ghsa":[{"id":"GHSA-jh87-7j82-9cr2","title":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the...","description":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.","status":"published","published":"2022-05-24T19:05:39Z","modified":"2023-01-29T05:07:02Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:08.233339Z"}],"nvd":[{"id":"CVE-2021-34815","description":"CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.","status":"published","published":"2021-06-18T12:15:08.077Z","modified":"2026-06-17T03:56:37.21Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}