CVE-2026-73531: Django-Helpdesk

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

django-helpdesk before 2.3.3 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject arbitrary JavaScript by submitting HTML-formatted email messages or uploading .html/.htm file attachments through public ticket submission channels. Attackers can exploit the lack of sanitization and Content-Disposition headers at the attachment-serving layer to execute malicious scripts in the browser session of authenticated staff members who open the attachment while triaging tickets.

Affected products

• Django-Helpdesk Django-Helpdesk: before 2.3.3 (fixed in 2.3.3)

Published 2026-08-13. Last modified 2026-09-09.