CVE-2026-89031
Blog2Social WordPress Plugin < 9.1.0 Broken Access Control via b2s_calendar_move_post
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 16, 2026
- Updated
- Oct 1, 2026
- Reserved
- Sep 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
Blog2SocialAdenion |
|
References
- WordPress Changelogrelease-notespatch
- https://www.vulncheck.com/advisories/blog2social-wordpress-plugin-broken-access-control-via-b2s-calendar-move-postthird-party-advisory
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