Multiple cross-site scripting (XSS) vulnerabilities in Webcit before 7.11 allow remote attackers to inject arbitrary web script or HTML via (1) the who parameter to showuser; and other vectors involving (2) calendar mode, (3) bulletin board mode, (4) room names, and (5) uploaded file names.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.071
EPSS Ranking 91.0%