CVE-2026-0718
Received Received - Intake
Unauthorized Data Modification in PostX WordPress Plugin via Missing Capability Check

Publication date: 2026-04-16

Last updated on: 2026-04-16

Assigner: Wordfence

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.
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Meta Information
Published
2026-04-16
Last Modified
2026-04-16
Generated
2026-06-16
AI Q&A
2026-04-16
EPSS Evaluated
2026-06-14
NVD
CVE-2026-0718
EUVD
EUVD-2026-23201
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wp_postx postx to 5.0.5 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

The vulnerability exists in the Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress, specifically in the ultp_shareCount_callback() function. Due to a missing capability check, unauthenticated attackers can modify the share_count post meta for any post, including private or draft posts.

Impact Analysis

This vulnerability allows unauthenticated attackers to alter the share count data of posts on a WordPress site using the affected plugin. This unauthorized modification can affect the integrity of post metadata, potentially misleading users or administrators about the popularity or sharing status of content, including private or draft posts.

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