CVE-2024-5326
Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update
- Published
- May 30, 2024
- Updated
- Apr 8, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 72.5%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
Proof-of-concept exploit for CVE-2024-5326, a missing authorization vulnerability in the PostX WordPress plugin allowing authenticated attackers to change arbitrary options and escalate privileges to Administrator.
CVE-2024-5326 Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update
Responsible use
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