CVE-2026-38446

unknowncovered by 1 sourcefirst seen 2026-08-03

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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Advisory coverage (1)

unknownCVE-2026-38446: A stored cross-site scripting (XSS) vulnerability exists in osTicket 1.18.3 due to improper sa…nvd · 2026-08-03

External references

NVD record for CVE-2026-38446

CVE.org record

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