The deletion of tracker reports delete criteria filters that might not be related to the deleted tracker report.
Impact
In a standard usages of Tuleap, the issue have a limited impact, it will mostly leave dangling data. However, a malicious user could create and delete reports multiple times to cycle through all the filters of all reports of the instance and delete them. The malicious user only need to have access to one tracker. This would result in the loss of all criteria filters forcing users and tracker admins to re-create them.
CVSSv3.1 score: 4.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
Exploitation
Go to a tracker report and delete it.
Check in db, you will have leftovers in tables tracker_report_criteria_<type>_value
.
References
CWE 440
CVE-2025-27401