{"id":"CVE-2026-46721","aliases":["EUVD-2026-30857","GHSA-v348-vr4q-fv9p"],"status":"published","title":"Broken Access Control in extension \"Frontend User Registration\" (sf_register)","description":"The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00362,"percentile":0.30456,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-639","CWE-915"],"published":"2026-05-19T09:19:10Z","modified":"2026-10-28T02:30:54Z","fixes":[{"ecosystem":"Packagist","package":"evoweb/sf-register","fixed_in":["14.0.2","13.2.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"evoweb/sf-register","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"14.0.0"},{"fixed":"14.0.2"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"evoweb/sf-register","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.2.4"}]}]},{"source":"osv","ecosystem":"Packagist","package":"evoweb/sf-register","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"14.0.0"},{"fixed":"14.0.2"}]}],"versions":["14.0.0","14.0.1"]},{"source":"osv","ecosystem":"Packagist","package":"evoweb/sf-register","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.2.4"}]}],"versions":["10.0.0","10.0.1","10.0.2","10.1.0","10.1.1","10.1.2","10.1.3","10.1.4","10.1.5","10.1.6","10.1.7","10.2.0","11.0.0","11.1.0","11.1.1","11.1.2","11.1.3","11.1.4","11.1.5","12.0.0","12.0.1","13.0.0","13.0.1","13.1.0","13.1.1","13.1.2","13.1.3","13.1.4","13.2.0","13.2.1","13.2.2","13.2.3","6.2.9","8.7.0","8.7.1","8.7.2","8.7.3","8.8.0","8.8.1","8.8.2","8.8.3","8.8.4","8.8.5","8.8.6","9.0.0","9.1.0","9.2.0","9.3.0","9.4.0","9.4.1"]}],"products":[{"vendor":"typo3","product":"extension \"frontend user registration\""}],"references":[{"url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-009","tags":["vendor-advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46721","tags":["advisory"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/evoweb/sf-register/CVE-2026-46721.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-v348-vr4q-fv9p"},{"url":"https://packagist.org/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46721.json","tags":["advisory"]},{"url":"https://github.com/evoWeb/sf_register","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-46721","title":"Broken Access Control in extension \"Frontend User Registration\" (sf_register)","description":"The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T09:19:10.688Z","modified":"2026-05-19T13:21:39.704Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-915","CWE-639"],"updated_at":"2026-11-02T13:46:55.086623Z"}],"euvd":[{"id":"EUVD-2026-30857","description":"The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T09:19:10Z","modified":"2026-05-19T13:21:39Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:21:15.688012Z"}],"ghsa":[{"id":"GHSA-v348-vr4q-fv9p","title":"TYPO3 sf_register extension allows unauthorized assignment of frontend user groups","description":"The `create` and `edit` flows in the TYPO3 extension sf_register do not restrict which user properties may be submitted, and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T12:31:39Z","modified":"2026-06-29T22:58:07Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:40:35.701766Z"}],"nvd":[{"id":"CVE-2026-46721","description":"The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T10:16:24.853Z","modified":"2026-10-26T13:10:00.14Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-639","CWE-915"],"updated_at":"2026-11-02T14:12:19.39893Z"}],"osv":[{"id":"CVE-2026-46721","title":"Broken Access Control in extension \"Frontend User Registration\" (sf_register)","description":"The create and edit flows do not restrict which user properties may be submitted and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T09:19:10.688Z","modified":"2026-10-28T02:30:54.870652204Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-639","CWE-915"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"GHSA-v348-vr4q-fv9p","title":"TYPO3 sf_register extension allows unauthorized assignment of frontend user groups","description":"The `create` and `edit` flows in the TYPO3 extension sf_register do not restrict which user properties may be submitted, and do not enforce access control on the frontend user group assignment. As a result, an attacker can assign an arbitrary frontend user group to a newly registered or edited account, gaining unauthorized access to content and functionality restricted to privileged frontend user groups.","status":"published","published":"2026-05-19T12:31:39Z","modified":"2026-09-10T03:50:47.69968421Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:46:56.639206Z"}]}}