osTicket 1.12 File Upload Cross Site Scripting
Posted by deepcore on August 12, 2019 – 10:18 pm
An issue was discovered in osTicket versions before 1.10.7 and 1.12.x before 1.12.1. The Ticket creation form allows users to upload files along with queries. It was found that the file-upload functionality has fewer (or no) mitigations implemented for file content checks; also, the output is not handled properly, causing persistent XSS that leads to cookie stealing or malicious actions.
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