{"id":"CVE-2026-4248","summary":"Ultimate Member \u003c= 2.11.2 - Authenticated (Contributor+) Sensitive Information Exposure to Account Takeover via Shortcode Template Tag","details":"The Ultimate Member plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.2. This is due to the '{usermeta:password_reset_link}' template tag being processed within post content via the '[um_loggedin]' shortcode, which generates a valid password reset token for the currently logged-in user viewing the page. This makes it possible for authenticated attackers, with Contributor-level access and above, to craft a malicious pending post that, when previewed by an Administrator, generates a password reset token for the Administrator and exfiltrates it to an attacker-controlled server, leading to full account takeover.","modified":"2026-07-15T01:48:50.325576163Z","published":"2026-03-27T22:26:22.535Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4248.json","cna_assigner":"Wordfence","cwe_ids":["CWE-285"]},"references":[{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.2/includes/um-short-functions.php#L205"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/changeset/3492178/ultimate-member/trunk/includes/um-short-functions.php"},{"type":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/baafd001-144d-4ee4-b7e6-28c0931e6e10?source=cve"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4248.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4248"},{"type":"FIX","url":"https://github.com/ultimatemember/ultimatemember/pull/1799"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ultimatemember/ultimatemember","events":[{"introduced":"0"},{"last_affected":"6d6bcfebc1528bf06b9710a10f48afa4a54b9c32"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"2.11.2"}]}}],"versions":["2.11.2","2.8.9","2.8.8","2.8.7","2.8.6","2.8.5","2.8.4","2.8.3","2.8.2","2.8.1","2.8.0","2.7.0","2.6.11","2.6.10","2.6.9","2.6.8","2.6.7","2.6.6","2.6.5","2.6.4","2.6.3","2.6.2","2.6.1","2.6.0","2.5.4","2.5.3","2.5.2","2.5.1","2.5.0","2.4.2","2.4.1","2.4.0","2.3.2","2.3.1","2.3.0","2.2.5","2.2.4","2.2.3","2.2.2","2.2.1","2.2.0","2.1.20","2.1.19","2.1.18","2.1.17","2.1.16","2.1.15","2.1.14","2.1.13","2.1.12","2.1.11","2.1.10","2.1.9","2.1.8","2.1.7","2.1.6","2.1.5","2.1.4","2.1.3","2.1.3-rc.1","2.1.2","2.1.2-rc.1","2.1.1","2.1.0","2.1.0-rc.2","2.1.0-rc.1","2.0.54","2.0.53","2.0.50","2.0.49","2.0.48","2.0.47","2.0.46","2.0.45","2.0.44","2.0.43","2.0.41","2.0.39","2.0.38","2.0.37","2.0.35","2.0.34","2.0.24","2.0.17","2.0.16","2.0.11","2.0.10","2.0.9","2.0.5","2.0.4","1.3.88","1.3.88.6","1.3.88.5","1.3.88.4","v1.3.88.3","v1.3.88.2","v1.3.88.1","v1.3.84","v1.3.83","v1.3.82","v1.3.81","v1.3.79","v1.3.78","v1.3.76","v1.3.75","v1.3.74","v1.3.73","v1.3.72","v1.3.71","v1.3.69","pre-v1.3.69.25","pre-v1.3.69.24","pre-v1.3.69.23","pre-v1.3.69.22","pre-v1.3.69.21","pre-v1.3.69.20","pre-v1.3.69.19","pre-v1.3.69.18","pre-v1.3.69.17","pre-v1.3.69.16","v1.3.68","v1.3.67","v1.3.66","v1.3.65","v1.3.64","v1.3.63","v1.3.62","v1.3.61","v1.3.60","1.3.59","v1.3.56","v1.3.55","v1.3.54","v1.3.53","v1.3.52","v1.3.51","pre-v1.3.50","v1.3.49","1.3.48","v1.3.47","v1.3.45","v1.3.44","v1.3.43","v1.3.42","v1.3.41","v1.3.40","v1.3.39","v1.3.38","v1.3.37","v1.3.36","v1.3.35","v1.3.32","v1.3.30","v1.3.29"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4248.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"}]}