CVE-2025-4334

CRITICAL NUCLEI

Simple User Registration < 6.3 - Unauthenticated Privilege Escalation via User Meta Manipulation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 5 public exploits for CVE-2025-4334. PoCs published by Nxploited, ctkqiang, 0xgh057r3c0n. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit automates privilege escalation in the Simple User Registration WordPress plugin by extracting form details and submitting a crafted registration request to create an administrator account.

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.

Exploits (5)

nomisec WORKING POC 7 stars
by Nxploited · poc
https://github.com/Nxploited/CVE-2025-4334

This exploit automates privilege escalation in the Simple User Registration WordPress plugin by extracting form details and submitting a crafted registration request to create an administrator account.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Simple User Registration WordPress plugin <= 6.3
No auth needed
Prerequisites: Access to the registration form URL · WordPress site with vulnerable plugin installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →
github WORKING POC 4 stars
by ctkqiang · gopoc
https://github.com/ctkqiang/CVE-Exploits/tree/main/CVE-2025-4334

The repository contains functional exploit code for CVE-2023-21980 (MySQL client library hijacking via UTF-16 path traversal) and CVE-2025-14847 (MongoDB zLib memory leak). The MySQL exploit demonstrates RCE via malicious library loading, while the MongoDB tool extracts heap memory via crafted OP_COMPRESSED packets.

Classification
Working Poc 95%
Attack Type
Rce, Info Leak
Complexity
Moderate
Reliability
Reliable
Target: MySQL Client (pre-8.0.33), MongoDB (multiple versions)
No auth needed
Prerequisites: gcc for compilation · network access to target · MySQL client with UTF-16 support · MongoDB with zlib compression enabled
devstral-2 · analyzed Feb 27, 2026 Full analysis →
nomisec WORKING POC 3 stars
by 0xgh057r3c0n · poc
https://github.com/0xgh057r3c0n/CVE-2025-4334

This is a functional exploit for CVE-2025-4334, targeting an unauthenticated privilege escalation vulnerability in the Simple User Registration WordPress plugin (<= v6.3). It automates the creation of an administrator account by extracting form details and submitting a crafted registration request.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Simple User Registration WordPress plugin <= 6.3
No auth needed
Prerequisites: Access to the target WordPress site with the vulnerable plugin installed · URL of the registration form page
devstral-2 · analyzed Feb 16, 2026 Full analysis →
github WORKING POC 1 stars
by vinodwick · pythonpoc
https://github.com/vinodwick/CVE-2025-4334

This Python script exploits an unauthenticated privilege escalation vulnerability in Simple User Registration plugin for WordPress by crafting a malicious registration request with administrator role assignment. It extracts necessary form details (nonce, form_id) and submits a crafted POST request to elevate privileges.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Simple User Registration plugin for WordPress <= 6.3
No auth needed
Prerequisites: WordPress site with vulnerable Simple User Registration plugin · Access to registration form page
devstral-2 · analyzed Feb 19, 2026 Full analysis →
github WORKING POC
by Boshe99 · pythonpoc
https://github.com/Boshe99/CVE-Exploits/tree/main/CVE-2025-4334

The repository contains functional exploit code for CVE-2025-4334, targeting a WordPress plugin (3DPrint Lite 1.9.1.4) with an arbitrary file upload vulnerability. The Python script demonstrates the ability to upload a malicious file to a vulnerable target.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: WordPress Plugin 3DPrint Lite 1.9.1.4
No auth needed
Prerequisites: target URL · malicious file to upload
devstral-2 · analyzed Feb 27, 2026 Full analysis →

Nuclei Templates (1)

Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
CRITICALVERIFIEDby pussycat0x
Shodan: http.component:"wordpress" && http.html:"/wp-content/plugins/simple-user-registration/"

Scores

CVSS v3 9.8
EPSS 0.0205
EPSS Percentile 78.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-269
Status published
Products (2)
najeebmedia/simple_user_registration < 6.3
nmedia/Simple User Registration < 6.3
Published Jun 26, 2025
Tracked Since Feb 18, 2026