{"id":"CVE-2020-25902","aliases":["EUVD-2020-18534","GHSA-9p36-3r73-mx7q"],"status":"disputed","title":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The...","description":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research","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":"2026-11-08","score":0.00689,"percentile":0.53025,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-03-02T12:35:49Z","modified":"2026-06-17T03:07:26Z","products":[{"vendor":"blackboard","product":"collaborate_ultra"}],"references":[{"url":"https://www.blackboard.com/teaching-learning/collaboration-web-conferencing/blackboard-collaborate","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://github.com/Lawyer-1/Turki/blob/main/CVE-2020-25902.md","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25902"},{"url":"https://github.com/advisories/GHSA-9p36-3r73-mx7q"}],"sources":{"cve":[{"id":"CVE-2020-25902","description":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research","status":"disputed","published":"2021-03-02T12:35:49Z","modified":"2024-08-04T15:49:05.967Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-18534","description":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research","status":"published","published":"2021-03-02T12:35:49Z","modified":"2024-08-04T15:49:05Z","updated_at":"2026-11-03T03:07:16.308974Z"}],"ghsa":[{"id":"GHSA-9p36-3r73-mx7q","title":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The...","description":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class.","status":"published","published":"2022-05-24T17:43:27Z","modified":"2024-03-21T03:34:03Z","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":"2026-11-02T14:55:42.026509Z"}],"nvd":[{"id":"CVE-2020-25902","description":"Blackboard Collaborate Ultra 20.02 is affected by a cross-site scripting (XSS) vulnerability. The XSS payload will execute on the class room, which leads to stealing cookies from users who join the class. NOTE: Third-parties dispute the validity of this entry as a possible false positive during research","status":"disputed","published":"2021-03-02T13:15:15.557Z","modified":"2026-06-17T03:07:26.713Z","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":"2026-11-02T14:06:37.687844Z"}]}}