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PostX – Gutenberg Blocks for Post Grid <= 3.2.3 — Incorrect Authorization

CVE-2024-31246Published · Updated

Action summary

Affected: ≤3.2.3Update to 3.2.4 or newer

All remediation steps
Severity
Medium4.3
CVSS
4.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-863 Incorrect Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Post Grid Gutenberg Blocks – PostX ultimate-post

  1. Affected≤ 3.2.3
  2. Patched in3.2.4

Update to 3.2.4 or newer.

You are affected if you run ≤ 3.2.3. Version 3.2.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Post Grid Gutenberg Blocks – PostX.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 3.2.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Post Grid Gutenberg Blocks – PostX to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to movrment.

The PostX – Gutenberg Blocks for Post Grid plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on several REST API endpoints in versions up to, and including, 3.2.3. This makes it possible for authenticated attackers, with author-level access and above, to perform several unauthorized actions.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Post Grid Gutenberg Blocks – PostX

All 29
More vulnerabilities in Post Grid Gutenberg Blocks – PostX
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via display_name User Field
≤5.1.0Update to 5.1.1
CVE-2026-96840
Medium5.3Unauthenticated Information Exposure
≤5.0.40Update to 5.0.41
CVE-2026-86783
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comments Block
≤5.0.13Update to 5.0.14
CVE-2026-5158
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute
≤5.0.32Update to 5.0.33
CVE-2026-15100
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute
≤5.0.31Update to 5.0.32
CVE-2026-13253

Timeline

  1. CVE published

    Severity medium, CVSS 4.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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