---
id: CVE-2026-73531
title: >-
  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 t…
summary: >-
  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 t…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-08-13'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:35:08.537'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73531'
references:
  - url: >-
      https://github.com/django-helpdesk/django-helpdesk/security/advisories/GHSA-q46c-8w98-fq2g
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/django-helpdesk-stored-xss-via-html-attachments
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00205
epssPercentile: 0.10783
ingestedAt: '2026-09-09T21:22:45.534Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.