Description
An issue was discovered in osTicket 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. For example, a non-agent user can upload a .html file, and Content-Disposition will be set to inline instead of attachment.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Aishwarya Iyer · textwebappsphp
https://www.exploit-db.com/exploits/47224
References (5)
Scores
CVSS v3
5.4
EPSS
0.0044
EPSS Percentile
63.3%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-434
CWE-79
Status
published
Products (1)
osticket/osticket
< 1.10.7
Published
Aug 07, 2019
Tracked Since
Feb 18, 2026