XSS in Django-Helpdesk

CVE-2026-73531

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.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73531?
CVE-2026-73531 is a medium-severity vulnerability in Django-Helpdesk, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-13.
How severe is CVE-2026-73531?
Medium severity. CVSS v3 base score is 6.1 out of 10.