Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.

Blackboard Learn through 9.1 allows XSS by an authenticated user via the Assignment Instructions HTML editor.

Stored Cross-site scripting (XSS) vulnerability in Blackboard Learn/PeopleTool v9.1 allows users to inject arbitrary web script via the Tile widget in the People Tool profile editor.

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

The bb-auth-provider-cas authentication module within Blackboard Learn 2018-07-02 is susceptible to HTTP host header spoofing during Central Authentication Service (CAS) service ticket validation, enabling a phishing attack from the CAS server login page.

Blackboard Learn (Since at least 17th of October 2017) has allowed Unvalidated Redirects on any signed-in user through its endpoints for handling Shibboleth logins, as demonstrated by a webapps/bb-auth-provider-shibboleth-BBLEARN/execute/shibbolethLogin?returnUrl= URI.