Altova MobileTogether Server before 7.3 SP1 allows XXE attacks, such as an InfoSetChanges/Changes attack against /workflowmanagement, or reading mobiletogetherserver.cfg and then reading the certificate and private key.
https://www.redteam-pentesting.de/en/advisories/-advisories-publicised-vulnerability-analyses
https://www.redteam-pentesting.de/advisories/rt-sa-2021-002