CVE-2026-48218 Open ISES Tickets < 3.44.2 Reflected XSS via icons/buttons/landb.php frm_name and frm_id Parameters

Medium 5.1 Published Updated

Authenticated attackers can inject arbitrary JavaScript via unsanitized parameters in Open ISES Tickets, leading to script execution in victim 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-2026-48218?

CVE-2026-48218 is a medium-severity cross-site scripting vulnerability in Open ISES Tickets, published on 21 May 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

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in icons/buttons/landb.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_name and frm_id POST parameters directly into rendered HTML content and inline JavaScript. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.

Weakness: CWE-79

Which versions are affected by CVE-2026-48218?

How do I fix CVE-2026-48218?

No fix has been published for CVE-2026-48218 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-2026-48218 being exploited?

There is no known exploitation of CVE-2026-48218 in the wild and no public exploit code.

Sources

Also known as GHSA-6v86-xjjm-2m4x.

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