{"id":"CVE-2026-73531","summary":"django-helpdesk \u003c 2.3.3 Stored XSS via HTML Attachments","details":"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.","aliases":["GHSA-q46c-8w98-fq2g"],"modified":"2026-08-16T03:31:00.449910447Z","published":"2026-08-13T19:06:11.969Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73531.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73531.json"},{"type":"ADVISORY","url":"https://github.com/django-helpdesk/django-helpdesk/security/advisories/GHSA-q46c-8w98-fq2g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73531"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/django-helpdesk-stored-xss-via-html-attachments"},{"type":"PACKAGE","url":"https://github.com/django-helpdesk/django-helpdesk"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/django-helpdesk/django-helpdesk","events":[{"introduced":"0"},{"fixed":"360bace463c78314adb07d6b8bffc4676b73be29"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.3.3"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v2.3.2","v2.3.1","v2.3.0","v2.2.0","v2.1.1","v2.1.0","v2.0.2","v2.0.1","v2.0.0","v1.8.0","v1.7.0","v1.6.2","v1.6.1","v1.6.0","v1.5.1","v1.5.0","v1.3.1","v1.3.0","v1.2.0","v1.1.0","v1.0.0-docs","v1.0.0","0.5.0","0.4.0","0.3.0","0.3.0b3","0.3.0b1","0.2.18","0.2.17","0.2.16","0.2.15","0.2.14","0.2.13","0.2.12","0.2.11","0.2.10","0.2.9","0.2.8","0.2.7","0.2.4","0.2.6","0.2.5","0.2.3","0.2.1","0.2.0","0.1.17","0.1.16","0.1.15"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73531.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}