CVEvulnerability

CVE-2026-38444

6.1 MEDIUM Published 2026-08-03 Modified 2026-08-31 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

osTicket v1.18.3 is vulnerable to Stored Cross-Site Scripting (XSS) via the email From-header display name. The value is extracted without sanitization in include/class.mailparse.php and stored raw in the poster field of ost_thread_entry. When an unauthenticated attacker sends a reply email to an existing ticket from an unregistered address with an XSS payload in the From display name.

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-2026-38444.md github.com
https://github.com/osTicket/osTicket/blob/develop/include/class.mailparse.php github.com
https://github.com/osTicket/osTicket/commit/c54a6ac79de42cff35b453882d1d94cd38adb17f github.com

CVE-2026-38444

Description

Related

Weakness · CWE (1)

References