Vulnerability · Published Apr 16, 2026 · Assigned by Wordfence
CVE-2026-0718Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX <= 5.0.5 - Missing Authorization to Limited Post Meta Modification
Medium 5.3
In plain English
A medium-severity missing authorization in Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX from wpxpo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Official description
The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the ultp_shareCount_callback() function in all versions up to, and including, 5.0.5. This makes it possible for unauthenticated attackers to modify the share_count post meta for any post, including private or draft posts.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpxpo | Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX | 0 – through 5.0.5 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N