Privilege escalation in Najeebmedia Memberhero
CVE-2025-4334
The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3. This is due to insufficient restrictions on user meta values that can be supplied during registration. This makes it possible for unauthenticated attackers to register as an administrator.
Vulnerability class: Privilege Escalation
EPSS: 0.021 (79.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
- security@wordfence.com (Product)
Frequently asked questions
- What is CVE-2025-4334?
- CVE-2025-4334 is a critical-severity vulnerability in Najeebmedia Memberhero, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2025-06-26.
- How severe is CVE-2025-4334?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-4334 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.