๐Ÿ” CVE Alert

CVE-2026-89031

MEDIUM 5.4

Blog2Social WordPress Plugin < 9.1.0 Broken Access Control via b2s_calendar_move_post

CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-639
Vendor adenion
Product blog2social
Published Sep 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

Affected Versions

Adenion / Blog2Social
0 < 9.1.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
wordpress.org: https://wordpress.org/plugins/blog2social/#developers vulncheck.com: https://www.vulncheck.com/advisories/blog2social-wordpress-plugin-broken-access-control-via-b2s-calendar-move-post

Credits

Choriyev Qahramon (ciprobe) VulnCheck