{"id":"CVE-2025-9891","title":"The User Sync – Remote User Sync plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.2","summary":"The User Sync – Remote User Sync plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.2. This is due to missing or incorrect nonce validation on the mo_user_sync_form_handler() functi…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","cwe":["CWE-352"],"published":"2025-09-17","updated":"2026-09-26","sourceUpdated":"2026-09-26T00:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-9891","references":[{"url":"https://plugins.trac.wordpress.org/browser/user-sync/tags/1.0.1/mo-user-sync-main.php#L118","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3360328%40user-sync&new=3360328%40user-sync&sfp_email=&sfph_mail=","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/6b60777e-6e07-42bd-9364-43367e209227?source=cve","label":"security@wordfence.com"}],"tags":["nvd"],"epss":0.00199,"epssPercentile":0.08682,"ingestedAt":"2026-09-26T00:22:39.921Z","slug":"CVE-2025-9891","body":"## Overview\n\nThe User Sync – Remote User Sync plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.2. This is due to missing or incorrect nonce validation on the mo_user_sync_form_handler() function. This makes it possible for unauthenticated attackers to deactivate the plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.\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,"exploitation":0,"ransomware":0},"changes":[]}