PT-2026-31109 · Pr Gateway · Blog2Social: Social Media Auto Post & Scheduler

Mariusz Maik · Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-4330

NVD

CVSS v3.1

4.3

Medium

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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 validate that the user-supplied 'b2s id' parameter belongs to the current user before performing UPDATE and DELETE operations. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify, reschedule, or delete other users' scheduled social media posts.

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-4330

Affected Products

Blog2Social: Social Media Auto Post & Scheduler

References · 17

• https://nvd.nist.gov/vuln/detail/CVE-2026-4330 · Security Note
• https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2183 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2178 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2273 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/f3eec9c6-fef9-4d6e-8328-51efb997c99c?source=cve · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2322 · Note
• https://plugins.trac.wordpress.org/changeset/3494550 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Ship/Save.php#L190 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2273 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2178 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Post/Tools.php#L32 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Loader.php#L2202 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Loader.php#L2202 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2322 · Note
• https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2183 · Note