Junglewise Threat Intelligence

CVE-2026-4330: Blog2Social Social Media Auto Post & Scheduler authorization bypass

CVE-2026-4330 · Severity: medium · CVSS 4.3 · Published 2026-04-08

Technologies: Pr-Gateway Blog2Social: Social Media Auto Post & Scheduler.

Executive brief

The Blog2Social plugin for WordPress, which automates social media posting, contains a security flaw that allows users to interfere with each other's content. An attacker with a basic account on the website can modify, reschedule, or delete social media posts scheduled by other users. This could lead to unauthorized changes in social media strategy or the deletion of planned marketing content.

Technical details

The Blog2Social plugin for WordPress is vulnerable to an Insecure Direct Object Reference (IDOR) / Authorization Bypass (CWE-639) within its AJAX handlers. The root cause is a failure to validate that the user-supplied 'b2s_id' parameter belongs to the currently authenticated user before executing UPDATE and DELETE database operations. An attacker with Subscriber-level permissions or higher can exploit this over the network by sending crafted AJAX requests to modify, reschedule, or delete social media posts belonging to any other user. A patch was introduced in version 3494550 (changeset).

Affected products

  • pr-gateway Blog2Social: Social Media Auto Post & Scheduler up to, and including, 8.8.3

Timeline

  • 2026-04-08: disclosed
  • 2026-04-08: advisory

References