blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2026-116761

MEDIUM 5.4 CVSS 3.1
Published
October 28, 2026
Last modified
October 29, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • jtsternberg CMB2 — Up to and including 2.13.4

References

  • github.com https://github.com/CMB2/CMB2/commit/fbeb7c4688dc5b8635a34978d837f1d458dcac44
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cmb2/tags/2.13.4/includes/CMB2_Field.php#L715
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cmb2/tags/2.13.4/includes/CMB2_Sanitize.php#L447
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cmb2/tags/2.13.4/includes/helper-functions.php#L320
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cmb2/tags/2.13.4/includes/types/CMB2_Type_Wysiwyg.php#L93
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3767609/cmb2/trunk/includes/CMB2_Field.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/97215367-08c0-46cc-a595-4475274a5a1c?source=cve
  • nvd.nist.gov Official NVD record