CVE-2026-118132 CVE-2026-118132

Not scored Published 27 Oct 2026 Updated 27 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-118132?

CVE-2026-118132 is a vulnerability in NextChat, published on 27 Oct 2026.

Official description

NextChat version 2.16.1 contains a client‑side cross‑site scripting (XSS) vulnerability in the Plugin Editor due to unsafe rendering of externally supplied OpenAPI plugin schema content. When a plugin schema is loaded from a remote URL, the returned content is stored in plugin.content and later rendered using React’s dangerouslySetInnerHTML without proper sanitization. An attacker can host a malicious OpenAPI schema containing HTML or JavaScript markup and trick a user into loading it through the Plugin Editor, resulting in arbitrary JavaScript execution in the NextChat origin. Successful exploitation allows access to JavaScript‑readable cookies and other client‑side data associated with the NextChat application.

Which versions are affected by CVE-2026-118132?

How do I fix CVE-2026-118132?

No fix has been published for CVE-2026-118132 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-118132 being exploited?

There is no known exploitation of CVE-2026-118132 in the wild and no public exploit code.

Sources

Also known as GHSA-whxc-wj8p-jg38.