Security Advisory

CVE-2026-38446

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-03 00:00:00

Last updated 2026-08-03 19:32:20

Assigner mitre

CVSS score not scored

State PUBLISHED

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.

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