CVE-2026-38446 Cross-site scripting in n/a
Attackers can inject malicious JavaScript via ticket titles in osTicket, potentially compromising staff accounts and executing code in their browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-38446?
CVE-2026-38446 is a medium-severity cross-site scripting vulnerability in n/a, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-38446?
How do I fix CVE-2026-38446?
No fix has been published for CVE-2026-38446 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-38446 being exploited?
There is no known exploitation of CVE-2026-38446 in the wild and no public exploit code.
Sources
Also known as GHSA-w47h-2qx7-7rfr.