CVE-2023-3460

CRITICAL EXPLOITED IN THE WILD NUCLEI LAB

Ultimate Member <2.6.7 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2023-3460 has been observed exploited in the wild (reported by VulnCheck KEV, InTheWild.io). EIP tracks 12 public exploits from researchers including Gurjot Singh, gbrsh, diego-tella. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates a privilege escalation vulnerability in the Ultimate Member WordPress plugin by manipulating the `wp_capabilities` parameter during registration to grant administrator privileges to a newly created user.

Description

The Ultimate Member WordPress plugin before 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will. This is actively being exploited in the wild.

Exploits (12)

exploitdb WORKING POC
by Gurjot Singh · pythonwebappsmultiple
https://www.exploit-db.com/exploits/52393

This exploit demonstrates a privilege escalation vulnerability in the Ultimate Member WordPress plugin by manipulating the `wp_capabilities` parameter during registration to grant administrator privileges to a newly created user.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Ultimate Member WordPress Plugin 2.6.6
No auth needed
Prerequisites: Access to the registration page of a vulnerable WordPress site
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 35 stars
by gbrsh · remote
https://github.com/gbrsh/CVE-2023-3460

This exploit targets CVE-2023-3460 in the Ultimate Member WordPress plugin, allowing unauthorized admin account creation by manipulating the registration form with a crafted nonce and capabilities parameter.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Ultimate Member WordPress plugin < 2.6.7
No auth needed
Prerequisites: WordPress site with vulnerable Ultimate Member plugin · Access to the registration page
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 7 stars
by diego-tella · client-side
https://github.com/diego-tella/CVE-2023-3460

This exploit PoC automates the creation of an administrator account in WordPress sites using the Ultimate Member plugin (versions < 2.6.7) by leveraging CVE-2023-3460, which allows arbitrary capability assignment during user registration. It includes version checking and nonce extraction for proper exploitation.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Ultimate Member WordPress plugin < 2.6.7
No auth needed
Prerequisites: Target must have the Ultimate Member plugin installed and vulnerable version · Registration page must be accessible
devstral-2 · analyzed Feb 16, 2026 Full analysis →
github WORKING POC 3 stars
by certuscyber · pythonpoc
https://github.com/certuscyber/cve-pocs/tree/main/CVE-2023-3460

The repository contains functional exploit code for CVE-2023-3460, demonstrating a UNION-based SQL Injection vulnerability in the WordPress YAWPP plugin. The PoC includes authentication, payload injection, and data exfiltration steps.

Classification
Working Poc 95%
Attack Type
Sqli
Complexity
Moderate
Reliability
Reliable
Target: WordPress YAWPP plugin <= 1.2
Auth required
Prerequisites: WordPress installation with YAWPP plugin · Contributor or higher role credentials
devstral-2 · analyzed Feb 27, 2026 Full analysis →
nomisec WORKING POC 1 stars
by GURJOTEXPERT · remote
https://github.com/GURJOTEXPERT/CVE-2023-3460

This is a functional PoC exploit for CVE-2023-3460, which allows unauthenticated users to create an administrator account in WordPress Ultimate Member plugin by manipulating registration form data. The script automates the process of fetching CSRF tokens and injecting malicious payloads to escalate privileges.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: WordPress Ultimate Member plugin ≤ 2.6.6
No auth needed
Prerequisites: Python 3 · requests library · urllib3 library · beautifulsoup4 library · target running vulnerable Ultimate Member plugin
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by Rajneeshkarya · remote
https://github.com/Rajneeshkarya/CVE-2023-3460

This exploit targets CVE-2023-3460 in the Ultimate Member WordPress plugin (versions < 5.6.7) by leveraging a privilege escalation vulnerability to create an admin user. It automates the process by extracting a nonce and submitting a crafted registration form with admin capabilities.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Ultimate Member WordPress Plugin < 5.6.7
No auth needed
Prerequisites: Target URL with vulnerable Ultimate Member plugin · Registration page accessible
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by TranKuBao · poc
https://github.com/TranKuBao/CVE-2023-3460_FIX

This repository contains a working exploit for CVE-2023-3460, an unauthenticated arbitrary user creation vulnerability in Ultimate Member <= 2.6.6. The exploit creates an admin user by manipulating form data and nonce values.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Ultimate Member WordPress plugin <= 2.6.6
No auth needed
Prerequisites: Target running Ultimate Member plugin <= 2.6.6 · Access to the registration form endpoint
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP
by julienbrs · remote
https://github.com/julienbrs/exploit-CVE-2023-3460

This repository contains a detailed writeup and analysis of CVE-2023-3460, a critical vulnerability in the Ultimate Member WordPress plugin that allows unauthorized admin access. The README provides an in-depth explanation of the vulnerability mechanism, security implications, and mitigation strategies.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Theoretical
Target: Ultimate Member WordPress plugin (version 2.6.5 and likely others)
No auth needed
Prerequisites: WordPress site with Ultimate Member plugin installed · User registration enabled
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by DiMarcoSK · poc
https://github.com/DiMarcoSK/CVE-2023-3460_POC

This PoC exploits CVE-2023-3460, an unauthorized admin access vulnerability in the Ultimate Member WordPress plugin. It automates the creation of an admin user by bypassing authentication and leveraging a nonce extraction technique.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Ultimate Member WordPress plugin (versions affected by CVE-2023-3460)
No auth needed
Prerequisites: Target WordPress site with vulnerable Ultimate Member plugin · Network access to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP
by EmadYaY · poc
https://github.com/EmadYaY/CVE-2023-3460

This repository provides a detailed writeup on CVE-2023-3460, a privilege escalation vulnerability in the Ultimate Member WordPress plugin. The exploit leverages accent character obfuscation to bypass the `is_metakey_banned` function, allowing an attacker to set arbitrary user capabilities during registration.

Classification
Writeup 100%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Ultimate Member WordPress plugin
No auth needed
Prerequisites: Access to the WordPress registration page · Ultimate Member plugin installed and configured
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by yon3zu · client-side
https://github.com/yon3zu/Mass-CVE-2023-3460

This PoC exploits CVE-2023-3460, an unauthorized admin access vulnerability in the Ultimate Member WordPress plugin. It checks the plugin version and, if vulnerable, creates an admin user via a crafted registration request.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Ultimate Member WordPress plugin < 2.6.7
No auth needed
Prerequisites: Target must have the Ultimate Member plugin installed and be vulnerable (< 2.6.7) · Registration page must be accessible
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by rizqimaulanaa · client-side
https://github.com/rizqimaulanaa/CVE-2023-3460

This exploit targets CVE-2023-3460, an unauthorized admin access vulnerability in the Ultimate Member WordPress plugin. It automates the process of creating an administrator account by bypassing authentication checks.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Ultimate Member WordPress plugin < 2.6.7
No auth needed
Prerequisites: Target running vulnerable Ultimate Member plugin · Access to the registration page
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Ultimate Member < 2.6.7 - Unauthenticated Privilege Escalation
CRITICALVERIFIEDby DhiyaneshDk
Shodan: http.html:/wp-content/plugins/ultimate-member
FOFA: body=/wp-content/plugins/ultimate-member

References (2)

Core 2

Scores

CVSS v3 9.8
EPSS 0.6960
EPSS Percentile 99.3%
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 poc
Automatable yes
Technical Impact total

Lab Environment

COMMUNITY SUSPICIOUS
Community Lab
docker pull wordpress:latest
+8 more repos

Details

VulnCheck KEV 2023-06-29
InTheWild.io 2023-07-04
Status published
Products (1)
ultimatemember/ultimate_member < 2.6.7
Published Jul 04, 2023
Tracked Since Feb 18, 2026