Description
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.
Published: 2026-09-16
Score: 5.3 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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History

Wed, 16 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Blog2Social WordPress Plugin < 9.1.0 User Email Disclosure via b2s_search_user
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-16T14:01:30.872Z

Reserved: 2026-09-10T16:23:54.472Z

Link: CVE-2026-89030

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-16T14:17:13.193

Modified: 2026-09-16T14:17:13.193

Link: CVE-2026-89030

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses