Auth bypass in Wpxpo Post Grid Gutenberg Blocks For News, Magazines, Blog Websites – Postx
CVE-2026-0718
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-0718?
- CVE-2026-0718 is a medium-severity vulnerability in Wpxpo Post Grid Gutenberg Blocks For News, Magazines, Blog Websites – Postx, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-04-16.
- How severe is CVE-2026-0718?
- Medium severity. CVSS v3 base score is 5.3 out of 10.