Description
The XMLUI feature in DSpace before 3.6, 4.x before 4.5, and 5.x before 5.5 allows directory traversal via the themes/ path in an attack with two or more arbitrary characters and a colon before a pathname, as demonstrated by a themes/Reference/aa:etc/passwd URI.
Remediation
References
https://wiki.duraspace.org/display/DSDOC5x/Release+Notes
https://jira.duraspace.org/browse/DS-3094
https://github.com/DSpace/DSpace/releases/tag/dspace-5.5