{"cve":"CVE-2021-34621","nvd":{"published":"2021-07-07T13:15:08.537","modified":"2026-06-17T03:56:14.813","status":"Modified","description":"A vulnerability in the user registration component found in the ~/src/Classes/RegistrationAuth.php file of the ProfilePress WordPress plugin made it possible for users to register on sites as an administrator. This issue affects versions 3.0.0 - 3.1.3. .","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-306","CWE-269"],"references":["http://packetstormsecurity.com/files/163973/WordPress-ProfilePress-3.1.3-Privilege-Escalation.html","https://www.wordfence.com/blog/2021/06/easily-exploitable-critical-vulnerabilities-patched-in-profilepress-plugin/","http://packetstormsecurity.com/files/163973/WordPress-ProfilePress-3.1.3-Privilege-Escalation.html","https://www.wordfence.com/blog/2021/06/easily-exploitable-critical-vulnerabilities-patched-in-profilepress-plugin/"],"products":["properfraction:profilepress"],"source":"nvd","synced_at":"2026-10-19T21:20:07.141963181+00:00"},"epss":{"cve":"CVE-2021-34621","score":0.68862,"percentile":0.99347,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}