Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX: Code execution
Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX is affected by code execution. Exploitation requires at least subscriber-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account.
- Component
- Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX
- Plugin slug
ultimate-post- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 16, 2024
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Nov 16, 2024 and is one of 16 known issues for this plugin.
Update, patch or deactivate.
Update Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H