What is GHSA-78j3-qgmg-rvq3?

GHSA-78j3-qgmg-rvq3 is a security advisory published by GitHub Security Advisories with Medium severity. Adenion Blog2Social plugin for WordPress before 9.1.0 exposes the email addresses of all...

Which CVE IDs does GHSA-78j3-qgmg-rvq3 cover?

GHSA-78j3-qgmg-rvq3 covers the following CVE IDs: CVE-2026-89030. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-78j3-qgmg-rvq3?

GHSA-78j3-qgmg-rvq3 has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-78j3-qgmg-rvq3MediumCVSS 4.3

Adenion Blog2Social plugin for WordPress before 9.1.0 exposes the email addresses of all...

Vendor

GitHub Security Advisories

Published

September 16, 2026

Last Modified

September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-89030 →

📋 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.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-89030
https://wordpress.org/plugins/blog2social/#developers
https://www.vulncheck.com/advisories/blog2social-wordpress-plugin-user-email-disclosure-via-b2s-search-user
https://github.com/advisories/GHSA-78j3-qgmg-rvq3