The Post Grid plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on multiple REST API endpoints in versions up to, and including, 2.2.50. This makes it possible for unauthenticated attackers to expose sensitive inforamtion.
CVE-2023-40211 is a high severity with CVSS 7.5 Sensitive Information Exposure issue affecting the Plugin Post Grid. It affects Versions up to 2.2.50 and is fixed in 2.2.51.
Use the related hub and response guides to connect this CVE-2023-40211 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
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-2023-40211 is tracked for the Plugin Post Grid as high severity with CVSS 7.5. The affected range is Versions up to 2.2.50. Update Post Grid to 2.2.51 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
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 2.2.50.
Confirm Post Grid is updated to 2.2.51 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 |
post-grid
View on wordpress.org
|
| CVE | CVE-2023-40211 |
| Patched Versions |
2.2.51
|
| Affected Versions |
Versions up to 2.2.50
|
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.
Post Grid and Gutenberg Blocks 2.2.85 - 2.3.3 - Unauthenticated Privilege Escalation
Post Grid and Gutenberg Blocks <= 2.3.11 - Authenticated (Contributor+) PHP Object Injection
Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation
Post Grid <= 2.1.12 - Contributor+ SQL Injection
Post Grid Combo – 36+ Gutenberg Blocks <= 2.2.68 - Information Exposure via get_posts API Endpoint
Post Grid and Gutenberg Blocks <= 2.3.21 - Authenticated (Contributor+) Stored Cross-Site Scripting
Post Grid and Gutenberg Blocks <= 2.2.92 - Authenticated (Contributor+) Stored Cross-Site Scripting
Post Grid and Gutenberg Blocks <= 2.2.93 - Authenticated (Contributor+) Stored Cross-Site Scripting
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