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CVE-2026-118800

MEDIUM 6.4 CVSS 3.1
Published
November 7, 2026
Last modified
November 7, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

The aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headingTag' parameter in all versions up to, and including, 2.18.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected WordPress components

  • aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder Plugin · ablocks
    Confirmed match Active
    Up to and including 2.18.0
    View on WordPress.org

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

  • kodezen aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder — Up to and including 2.18.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/blocks/heading/block.php#L159
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/blocks/heading/block.php#L162
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/classes/block-base-abstract.php#L128
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3786225%40ablocks&new=3786225%40ablocks
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/fc051a2a-deb8-4888-abfb-c9d5ff27b0a7?source=cve
  • nvd.nist.gov Official NVD record