Auth bypass in Pr-gateway Blog2social: Social Media Auto Post & Scheduler
CVE-2026-4330
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to authorization bypass through user-controlled key in all versions up to, and including, 8.8.3. This is due to the plugin's AJAX handlers failing to va…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.000 (5.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/f3eec9c6-fef9-4d6e-8328-51efb…
- plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php
- plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Post/Tools.php
- plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Post/Too…
- plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Ship/Save.php
Frequently asked questions
- What is CVE-2026-4330?
- CVE-2026-4330 is a medium-severity vulnerability in Pr-gateway Blog2social: Social Media Auto Post & Scheduler, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-04-08.
- How severe is CVE-2026-4330?
- Medium severity. CVSS v3 base score is 4.3 out of 10.