CVE-2026-73531

MEDIUM 6.1

django-helpdesk < 2.3.3 Stored XSS via HTML Attachments

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	django-helpdesk
Product	django-helpdesk
Published	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

django-helpdesk / django-helpdesk

0 < 2.3.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/django-helpdesk/django-helpdesk/security/advisories/GHSA-q46c-8w98-fq2g vulncheck.com: https://www.vulncheck.com/advisories/django-helpdesk-stored-xss-via-html-attachments

Credits

Dilipkumar Choudhary