Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nmedia | Simple User Registration | ≤ 6.3 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 3 repositories
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Nxploited/CVE-2025-4334 ★ 7 · Jun 26, 2025
Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
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0xgh057r3c0n/CVE-2025-4334 ★ 3 · Aug 18, 2025
Proof-of-concept exploit for CVE-2025-4334, a privilege escalation vulnerability in the Simple User Registration WordPress plugin (<= 6.3), allowing unauthenticated attackers to create administrator …
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vinodwick/CVE-2025-4334 ★ 1 · Oct 25, 2025
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 ca…
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation http/cves/2025/CVE-2025-4334.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.