{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46721","assignerOrgId":"f4fb688c-4412-4426-b4b8-421ecf27b14a","state":"PUBLISHED","assignerShortName":"TYPO3","dateReserved":"2026-05-16T09:55:27.478Z","datePublished":"2026-05-19T09:19:10.688Z","dateUpdated":"2026-05-19T13:21:39.704Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f4fb688c-4412-4426-b4b8-421ecf27b14a","shortName":"TYPO3","dateUpdated":"2026-05-19T09:19:10.688Z"},"title":"Broken Access Control in extension \"Frontend User Registration\" (sf_register)","datePublic":"2026-05-19T09:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-915","description":"CWE-915","type":"CWE"},{"lang":"en","cweId":"CWE-639","description":"CWE-639","type":"CWE"}]}],"affected":[{"vendor":"TYPO3","product":"Extension \"Frontend User Registration\"","collectionURL":"https://packagist.org/","packageName":"evoweb/sf-register","repo":"https://github.com/evoWeb/sf_register","versions":[{"status":"affected","version":"14.0.0","lessThan":"14.0.2","versionType":"semver"},{"status":"affected","version":"0","lessThan":"13.2.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"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."}]}],"references":[{"url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-009","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"vectorString":"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"}}],"credits":[{"lang":"en","value":"Seungbin Yang","type":"reporter"},{"lang":"en","value":"Sebastian Fischer","type":"remediation developer"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-19T13:21:27.294366Z","id":"CVE-2026-46721","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-19T13:21:39.704Z"}}]}}