TI-2024-09942 Aliases CVE-2024-10728 GHSA-h7j2-r3qv-9q3v

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

HIGH 67CWE-862Published 2024-11-16 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.39069 98th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
wpxpo	Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX	up to 4.1.16	—	No fix listed	CNA

Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX Vendorwpxpo Affected up to 4.1.16 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wpxpo:postx::::::wordpress::*	before 4.1.17	Vulnerable	wpxpo

cpe:2.3:a:wpxpo:postx:*:*:*:*:*:wordpress:*:* Versions before 4.1.17 Vulnerable ·wpxpo

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-10728
2026-10-03 Alias added: GHSA-h7j2-r3qv-9q3v

References

Patch 1

https://plugins.trac.wordpress.org/changeset/3188636/ultimate-post/trunk/classes/Importer.php

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/076f36fb-c2fb-43e0-a027-1351d3995489?source=cve

Other 3

TI-2024-04008 PostX < 4.1.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.8
TI-2023-03707 PostX - Gutenberg Post Grid Blocks < 3.0.6 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2024-20622 WordPress PostX plugin <= 3.2.3 - Author+ Post/Page Duplication vulnerability CVSS 3.1HIGH 8.8
TI-2023-18248 WordPress PostX – Gutenberg Blocks for Post Grid Plugin <= 2.9.9 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
TI-2024-33876 WordPress PostX plugin <= 4.1.12 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
TI-2024-03037 PostX < 4.0.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences