CVE-2020-25902: Blackboard Collaborate Ultra

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

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

Affected products

• Blackboard Collaborate Ultra: version 20.02 only

Published 2021-03-02. Last modified 2026-06-17.