CVE-2026-4330

MEDIUM EPSS 41.4%

Published Apr 8, 20262mo ago · Modified Jun 17, 20261w ago

4.3 CVSS 3.1

Medium

Published Apr 8, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

4.3

Exploitability

2.8

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

41.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-639

References 16

plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2178
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2183
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2273
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2322
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Post/Tools.php#L32
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Ship/Save.php#L190
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Loader.php#L2202
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2178
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2183
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2273
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2322
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Post/Tools.php#L32
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Ship/Save.php#L190
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Loader.php#L2202
plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3494550/
wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f3eec9c6-fef9-4d6e-8328-51efb997c99c?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.