{"id":"CVE-2026-4882","state":"PUBLISHED","title":"User Registration Advanced Fields <= 1.6.20 - Unauthenticated Arbitrary File Upload","description":"The User Registration Advanced Fields plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'URAF_AJAX::method_upload' function in all versions up to, and including, 1.6.20. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a \"Profile Picture\" field is added to the form.","publishedAt":"2026-05-02T04:27:46.466Z","updatedAt":"2026-05-04T13:33:39.342Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["WPEverest User Registration Advanced Fields"],"affected":[{"vendor":"WPEverest","product":"User Registration Advanced Fields","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.6.20","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/f2c6a377-216f-4d61-8fae-ec5bc2793cdf?source=cve","https://wpuserregistration.com/features/advanced-fields/"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/4xxx/CVE-2026-4882.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4882","state":"PUBLISHED","datePublished":"2026-05-02T04:27:46.466Z","dateUpdated":"2026-05-04T13:33:39.342Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-03-26T08:01:39.713Z"},"containers":{"cna":{"title":"User Registration Advanced Fields <= 1.6.20 - Unauthenticated Arbitrary File Upload","descriptions":[{"lang":"en","value":"The User Registration Advanced Fields plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'URAF_AJAX::method_upload' function in all versions up to, and including, 1.6.20. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a \"Profile Picture\" field is added to the form."}],"affected":[{"vendor":"WPEverest","product":"User Registration Advanced Fields","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.6.20","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/f2c6a377-216f-4d61-8fae-ec5bc2793cdf?source=cve"},{"url":"https://wpuserregistration.com/features/advanced-fields/"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","lang":"en","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-05-02T04:27:46.466Z"},"credits":[{"lang":"en","type":"finder","value":"Jude Nwadinobi"}],"timeline":[{"time":"2026-03-26T13:44:55.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-05-01T15:46:06.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T13:33:33.277522Z","id":"CVE-2026-4882","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T13:33:39.342Z"}}]}}}