A cross-site scripting (XSS) vulnerability has been reported and confirmed for BeyondTrust Secure Remote Access Base Software version 6.0.1 and older, which allows the injection of unauthenticated, specially-crafted web requests without proper sanitization.
https://www.beyondtrust.com/docs/release-notes/index.htm
https://cxsecurity.com/issue/WLB-2022010013
http://packetstormsecurity.com/files/165408/BeyondTrust-Remote-Support-6.0-Cross-Site-Scripting.html