A SQL injection vulnerability in the "Search" functionality of "tickets.php" page in osTicket <=1.17.5 allows authenticated attackers to execute arbitrary SQL commands via the "keywords" and "topic_id" URL parameters combination.
A stored cross-site scripting (XSS) vulnerability in the component audit/class.audit.php of osTicket-plugins - Storage-FS before commit a7842d494889fd5533d13deb3c6a7789768795ae allows attackers to execute arbitrary web scripts or HTML via a crafted SVG file.
In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager user uploads a crafted .csv file to the User Importer, because file contents can appear in an error message. The XSS can lead to local file inclusion.
PHP remote file inclusion vulnerability in open_form.php in osTicket allows remote attackers to execute arbitrary PHP code via a URL in the include_dir parameter.
Directory traversal vulnerability in attachments.php in osTicket allows remote attackers to read arbitrary files via .. sequences in the file parameter.