{"id":"CVE-2026-38446","details":"A stored cross-site scripting (XSS) vulnerability exists in osTicket 1.18.3 due to improper sanitization of the thread entry title field. User-controlled input in the title is stored without adequate HTML escaping and later rendered in multiple staff-facing templates without proper output encoding. An attacker can inject arbitrary JavaScript by submitting a crafted ticket reply or email with a malicious subject line.","modified":"2026-08-12T03:51:13.969055229Z","published":"2026-08-03T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38446.json"},"references":[{"type":"WEB","url":"https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38446.md"},{"type":"WEB","url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/reply-expand.tmpl.php"},{"type":"WEB","url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entries.tmpl.php"},{"type":"WEB","url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entry.tmpl.php#L84"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38446.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38446"},{"type":"FIX","url":"https://github.com/osTicket/osTicket/commit/1e39bf1cf78fa298285f19b98f6a6dbb6808de19"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/osticket/osticket","events":[{"introduced":"0"},{"fixed":"1e39bf1cf78fa298285f19b98f6a6dbb6808de19"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v1.17.7","v1.17.6","v1.17.5","v1.17.4","v1.17.3","v1.17.2","v1.17.1","v1.17","v1.17-rc4","v1.16.3","v1.17-rc3","v1.17-rc2","v1.17-rc1","v1.16.2","v1.16.1","v1.16","v1.15.3.1","v1.12.2","v1.15.3","v1.15.2","v1.15.1","v1.14.4","v1.14.3","v1.14.2","v1.14.1","v1.14","v1.14-rc2","v1.14.-rc1","v1.12.1","v1.12","v1.11","v1.11.0-rc1","v1.10.1","v1.10","v1.9.5.1","v1.10-rc.3","v1.9.12","v1.9.11","v1.9.9","v1.9.8.1","v1.9.8","v1.9.7","v1.9.6","v1.9.5","v1.9.4","v1.9.4-rc5","v1.9.3","v1.9.2","v1.9.1","v1.9.0","v1.9-rc","v1.8.2-dpr","v1.8.1.2","v1.8.0.3","v1.8.0.1","v1.8.0.2","v1.8.0","v1.8.0-rc2","v1.8.0-rc1","v1.8-dpr"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-38446.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}