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CVE-2026-7465

HIGH 8.8 CVSS 3.1
Published
May 30, 2026
Last modified
July 22, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-269
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.19.25. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. Exploitation requires a two-block payload embedded in post content: the first block registers a fake uagb/-prefixed block type with an attacker-specified render_callback, and the second block of the same fake type triggers invocation of that callback via call_user_func() during sequential block rendering in the same page request.

Affected WordPress components

  • Spectra Legacy – Gutenberg Blocks Plugin · ultimate-addons-for-gutenberg
    Confirmed match Active
    Up to and including 2.19.25
    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

  • brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor — Up to and including 2.19.25

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.25/classes/class-uagb-init-blocks.php#L330
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/tags/2.19.25/classes/class-uagb-init-blocks.php#L335
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/trunk/classes/class-uagb-init-blocks.php#L330
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-gutenberg/trunk/classes/class-uagb-init-blocks.php#L335
  • wordpress.org https://wordpress.org/plugins/ultimate-addons-for-gutenberg/#developers
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/60013752-d7cf-46e8-84e1-1b614f737b46?source=cve
  • nvd.nist.gov Official NVD record