CVE-2026-4330 Missing authorization in Blog2Social: Social Media Auto Post & Scheduler
Authenticated subscribers can modify or delete other users' scheduled social media posts due to missing ownership validation in the Blog2Social plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4330?
CVE-2026-4330 is a medium-severity missing authorization vulnerability in pr-gateway Blog2Social: Social Media Auto Post & Scheduler, published on 8 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-4330?
How do I fix CVE-2026-4330?
No fix has been published for CVE-2026-4330 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-4330 being exploited?
There is no known exploitation of CVE-2026-4330 in the wild and no public exploit code.
Sources
Also known as GHSA-gx9c-69hc-cjmj.