{"id":"CVE-2026-89030","title":"Adenion Blog2Social plugin for WordPress before 9.1.0 exposes the email addresses of all registered WordPress users to low-privileged accounts","summary":"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 …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-862"],"vendor":"Adenion","product":"Blog2Social","affected":["Blog2Social < 9.1.0"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:17:20.330","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89030","references":[{"url":"https://wordpress.org/plugins/blog2social/#developers","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/blog2social-wordpress-plugin-user-email-disclosure-via-b2s-search-user","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-16T15:26:03.362672Z"},"ingestedAt":"2026-09-16T14:57:28.018Z","epss":0.00269,"epssPercentile":0.19322,"slug":"CVE-2026-89030","body":"## Overview\n\nAdenion 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}