CVE-2024-10728

HIGH 8.8

PostX <= 4.1.16 - Missing Authorization to Arbitrary Plugin Installation/Activation

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to unauthorized plugin installation/activation due to a missing capability check on the 'install_required_plugin_callback' function in all versions up to, and including, 4.1.16. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.

CWE	CWE-862
Vendor	wpxpo
Product	post grid gutenberg blocks for news, magazines, blog websites – postx
Published	Nov 16, 2024
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

wpxpo / Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX

0 ≤ 4.1.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/076f36fb-c2fb-43e0-a027-1351d3995489?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/tags/4.1.16/classes/Importer.php#L94 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/tags/4.1.16/classes/Initialization.php#L330 wordpress.org: https://wordpress.org/plugins/ultimate-post/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3188636/ultimate-post/trunk/classes/Importer.php

Credits

Sean Murphy