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CVE-2026-3454

MEDIUM 6.5 CVSS 3.1
Published
May 5, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-639
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

The GenerateBlocks plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.2.0. This is due to missing object-level authorization checks in the /wp-json/generateblocks/v1/dynamic-tag-replacements REST endpoint. The endpoint only verifies that the user has the edit_posts capability but does not verify the user has permission to access the specific post or its associated data referenced by attacker-controlled id parameters in dynamic tag content. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive information from arbitrary posts including author email addresses and non-protected post meta values by crafting dynamic tag payloads such as {{post_meta id:<target>|key:<meta_key>}} and {{post_title id:<target>|link:author_email}}.

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

  • edge22 GenerateBlocks — Up to and including 2.2.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/class-meta-handler.php#L335
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tag-callbacks.php#L364
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tag-callbacks.php#L64
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L392
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L424
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.2.0/includes/dynamic-tags/class-dynamic-tags.php#L501
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3495827%40generateblocks%2Ftrunk&old=3415721%40generateblocks%2Ftrunk&sfp_email=&sfph_mail=
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/0297d524-e016-4f8d-920c-d58c62edb2a0?source=cve
  • nvd.nist.gov Official NVD record