CVE-2026-89030

Adenion Blog2Social plugin for WordPress before 9.1.0 exposes the email addresses of all registered WordPress users to low-privileged accounts. The b2s_search_user AJAX handler in includes/Ajax/Get.php invokes B2S_Tools::searchUser() in includes/Tools.php, which returns the email address of every matching user without restricting access to callers holding the list_users capability, allowing any user with the edit_posts capability to retrieve user email addresses including those of administrators.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://wordpress.org/plugins/blog2social/#developers
https://www.vulncheck.com/advisories/blog2social-wordpress-plugin-user-email-disclosure-via-b2s-search-user

Configurations

No configuration.

History

16 Sep 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 14:17

Updated : 2026-09-16 16:17

NVD link : CVE-2026-89030

Mitre link : CVE-2026-89030

CVE.ORG link : CVE-2026-89030

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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