A stored cross-site scripting (XSS) vulnerability in the Calendar feature of REDCap through 14.9.6 allows authenticated users to inject malicious scripts into the Notes field of a calendar event. When the event is viewed, the crafted payload is executed, potentially enabling the execution of arbitrary web scripts.
https://www.evms.edu/research/resources_services/redcap/redcap_change_log/
https://github.com/ping-oui-no/Vulnerability-Research-CVESS/tree/main/RedCap