CVE-2026-116761Published

CMB2 <= 2.13.4 - Unauthenticated Stored Cross-Site Scripting via Grouped WYSIWYG Field via Front-End Form

Exact source revision recorded 28 Oct 2026 08:06:08 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-116761

Published

The CMB2 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'cmb43ex1_grp[0][txt] (wysiwyg field inside group — field id controlled by integrator config)' parameter in all versions up to, and including, 2.13.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when a site integrator renders the plugin's documented front-end form helper with a wysiwyg field inside a repeatable group on a publicly accessible page.

Source published: 28 Oct 2026 06:45:17 UTC
Source modified: 28 Oct 2026 06:45:17 UTC
Observed here: 28 Oct 2026 08:06:08 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

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CVSS 3.1 · 5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N