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}}.
CVE-2026-3454 is a medium severity with CVSS 6.5 Sensitive Information Exposure issue affecting the Plugin GenerateBlocks. It affects Versions up to 2.2.0 and is fixed in 2.2.1.
Use the related hub and response guides to connect this CVE-2026-3454 report with patch validation, scanner checks, and site hardening work.
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Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2026-3454 is tracked for the Plugin GenerateBlocks as medium severity with CVSS 6.5. The affected range is Versions up to 2.2.0. Update GenerateBlocks to 2.2.1 or newer where that version is compatible with the site.
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This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 2.2.0.
Confirm GenerateBlocks is updated to 2.2.1 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
generateblocks
View on wordpress.org
|
| CVE | CVE-2026-3454 |
| Patched Versions |
2.2.1
|
| Affected Versions |
Versions up to 2.2.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
GenerateBlocks <= 2.1.1 - Improper Authorization to Authenticated (Contributor+) Arbitrary Options Disclosure
GenerateBlocks <= 1.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
GenerateBlocks <= 2.1.2 - Authenticated (Contributor+) Information Exposure via Metadata
GenerateBlocks <= 1.9.1 - Authenticated (Contributor+) Sensitive Information Exposure via 'get_image_description'
GenerateBlocks <= 1.8.2 - Sensitive Information Exposure
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