WordPress security changelog
HIGH CVE-2024-5326 Deferred

Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX: A security weakness

Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX is affected by a security weakness. Exploitation requires at least contributor-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX
Plugin slug
ultimate-post
Affected
See vendor advisory
Safe version
See mitigation notes
Published
May 30, 2024
Weakness
CWE-862 — Missing Authorization

This CVE was published May 30, 2024 and is one of 16 known issues for this plugin.

What to do

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.

Source record

Technical description

The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'postx_presets_callback' function in all versions up to, and including, 4.1.2. This makes it possible for authenticated attackers, with Contributor-level access and above, to change arbitrary options on affected sites. This can be used to enable new user registration and set the default role for new users to Administrator.

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

References

Primary and upstream sources