Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update

published 2024-05-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-46552

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

wpxpo postx 4.1.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-06-04)

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

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

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

WordPress rss critical rss

References

Sources

CVE List CVE-2024-5326
NVD CVE-2024-5326

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary