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CVE-2026-3498

MEDIUM 6.4 CVSS 3.1
Published
April 11, 2026
Last modified
June 17, 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 BlockArt Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'clientId' block attribute in all versions up to, and including, 2.2.15. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected WordPress components

  • BlockArt Blocks – Gutenberg Blocks, Page Builder Blocks ,WordPress Block Plugin, Sections & Template Library Plugin · blockart-blocks
    Confirmed match Active
    Up to and including 2.2.15
    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

  • wpblockart BlockArt Blocks – Gutenberg Blocks, Page Builder Blocks ,WordPress Block Plugin, Sections & Template Library — Up to and including 2.2.15

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blockart-blocks/tags/2.2.15/includes/BlockTypes/PostTemplate.php#L67
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blockart-blocks/tags/2.2.15/includes/BlockTypes/QueryLoop.php#L43
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Fblockart-blocks/tags/2.2.15&new_path=%2Fblockart-blocks/tags/2.3.0
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7d0cb432-785a-4f38-830f-72b95e65aa5a?source=cve
  • nvd.nist.gov Official NVD record