CVE-2026-89031 Details
Description
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.
A broken access control vulnerability has been identified in the Adenion Blog2Social plugin for WordPress, affecting versions prior to 9.1.0. This vulnerability allows low-privileged users to manipulate the scheduled post records of others. The issue arises in the b2s_calendar_move_post AJAX handler, which updates the b2s_posts table using only the attacker-supplied b2s_id primary key, without any ownership verification. As a result, any user with the edit_posts capability can reschedule, suppress, or change the publication status of another user's scheduled social media post.
Users are advised to update the Blog2Social WordPress plugin to version 9.1.0 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 16, 2026CISA-ADP
Assessed Sep 21, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Adenion Blog2Social | < 9.1.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 21, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2026 | New CVE Received | [email protected] |