CVE-2026-0718
Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX <= 5.0.5 - Missing Authorization to Limited Post Meta Modification
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | wpxpo |
| Product | post grid gutenberg blocks for news, magazines, blog websites – postx |
| Published | Apr 16, 2026 |
| Last Updated | Apr 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for wpxpo post grid gutenberg blocks for news, magazines, blog websites – postx
Be the first to know when new medium vulnerabilities affecting wpxpo post grid gutenberg blocks for news, magazines, blog websites – postx are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpxpo / Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX
0 ≤ 5.0.5
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/c4b2cf3b-5d35-4ce6-9453-1538a6f7752f?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?old_path=/ultimate-post/tags/5.0.5/classes/Blocks.php&new_path=/ultimate-post/tags/5.0.6/classes/Blocks.php
Credits
Mohammad Amin Hajian