CVE-2025-4334 json
Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
published 2025-06-26 16 mo ago modified 2026-08-11 2 mo ago also EUVD-2025-19388
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.6%
- EPSS 2.6% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
- najeebmedia simple_user_registration 6.4
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 16 mo ago
Exploit prediction
2.59% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- nmedia Simple User Registration
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
- Technology feeds
References
Sources
- CVE List CVE-2025-4334
- NVD CVE-2025-4334
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.