CVE-2026-79315 Cross-site scripting in n/a

Medium 4.7 Published Updated

Reflected XSS in x-ui allows arbitrary script execution via crafted URLs, enabling data theft and unauthorized actions for logged-in users.

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-2026-79315?

CVE-2026-79315 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Sep 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 reflected cross-site scripting vulnerability exists in x-ui 0.3.2. The management interface reflects the raw request URI into a client-side template binding expression used for sidebar menu highlighting. Server-side HTML entity escaping is ineffective in this context: the browser decodes the entities before the client-side framework evaluates the content as a JavaScript expression. A logged-in panel user who visits a crafted URL allows arbitrary script execution in the same-origin context of the management page, enabling data theft and unauthorized actions through the victim's session.

Weakness: CWE-79

Which versions are affected by CVE-2026-79315?

How do I fix CVE-2026-79315?

No fix has been published for CVE-2026-79315 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-2026-79315 being exploited?

There is no known exploitation of CVE-2026-79315 in the wild and no public exploit code.

Sources

Also known as GHSA-fxjc-7693-737g.

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