Vulnerability in Blog2Social: Social Media Auto Post & Scheduler — CVE-2026-89031
MediumSeverity
—Estimated exploit probability
50,000+ sitesInstalls
9.1.0Fixed in
What to do now
Update Blog2Social: Social Media Auto Post & Scheduler to 9.1.0 or later.
Affected versions
- Everything before 9.1.0
Affected: Blog2Social: Social Media Auto Post & Scheduler (plugin, blog2social)
What the vulnerability is
Adenion Blog2Social plugin for WordPress before 9.1.0 allows low-privileged users to modify the scheduled post records of other users. The b2s_calendar_move_post AJAX handler in includes/Ajax/Post.php issues an UPDATE against the b2s_posts table using only the attacker-supplied b2s_id primary key with no blog_user_id ownership constraint, allowing any user with the edit_posts capability to reschedule, suppress, or alter the publication state of any other user's scheduled social media post.