CVEvulnerability
CVE-2026-38446
6.1 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-08-03
- Last modified
- 2026-08-31
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
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.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38446.md github.com
- https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/reply-expand.tmpl.php github.com
- https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entries.tmpl.php github.com
- https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entry.tmpl.php#L84 github.com
- https://github.com/osTicket/osTicket/commit/1e39bf1cf78fa298285f19b98f6a6dbb6808de19 github.com