CVE-2026-38444

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 ostthreadentry. When an unauthenticated attacker sends a reply email to an...

CVE-2026-38444: Improper Neutralization of Input During Web Page Generation

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 ostthreadentry. When an unauthenticated attacker sends a reply email to an...