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

Source: https://junglewise.ai/threats/cve-2026-4330-blog2social-social-media-auto-post-scheduler-authorization-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-08. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

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

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.

## Quick answers

**Is CVE-2026-4330 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-4330 being exploited in the wild.

**How severe is CVE-2026-4330?** Medium severity, with a CVSS score of 4.3, published 8 April 2026.

**Which products and versions are affected?** pr-gateway Blog2Social: Social Media Auto Post & Scheduler up to, and including, 8.8.3.

**Is there a fix for CVE-2026-4330?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-4330 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-4330?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## 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

- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Post/Tools.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Post/Tools.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Ship/Save.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Ship/Save.php)
- [https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Loader.php](https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Loader.php)