The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 4.1.36. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.
CVE-2025-54751 is a medium severity with CVSS 4.3 Vulnerability issue affecting the Plugin Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX. It affects Versions up to 4.1.36 and is fixed in 4.1.37.
CVE-2025-54751 is tracked for the Plugin Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX as medium severity with CVSS 4.3. The affected range is Versions up to 4.1.36. Update Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX to 4.1.37 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
ultimate-post
View on wordpress.org
|
| CVE | CVE-2025-54751 |
| Patched Versions |
4.1.37
|
| Affected Versions |
Versions up to 4.1.36
|
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.
PostX <= 4.1.16 - Missing Authorization to Arbitrary Plugin Installation/Activation
Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update
Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX <= 5.0.3 - Missing Authorization to Unauthenticated Sensitive Information Exposure
PostX <= 5.0.8 - Authenticated (Administrator+) Server-Side Request Forgery via REST API Endpoints
PostX <= 4.1.35 - Authenticated (Editor+) Privilege Escalation
PostX – Gutenberg Blocks for Post Grid <= 2.9.9 - Unauthenticated Cross-Site Scripting
PostX - Gutenberg Blocks for Post Grid <= 2.4.9 - Unauthorized Access Controls
PostX <= 4.1.25 - Authenticated (Contributor+) Stored Cross-Site Scripting
This record contains material that is subject to copyright
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more
