Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
bitbucket.org/tildeslash/monit/commits/1a8295eab6815072a18019b668fe084945b751f3
bitbucket.org/tildeslash/monit/commits/328f60773057641c4b2075fab9820145e95b728c
github.com/dzflack/exploits/blob/master/unix/monit_xss.py
lists.debian.org/debian-lts-announce/2019/04/msg00028.html
lists.debian.org/debian-lts-announce/2021/12/msg00018.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZQDHRSKTEX5MSYXNCGFTUSFGANBARHX/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L475QJMFFI2QV5QEHAKKPVX6QX6ECUL6/
usn.ubuntu.com/3971-1/