CVE-2023-51476 CRITICAL

CVE-2023-51476: WordPress WP MLM Unilevel plugin <= 4.0 - Unauthenticated Account Takeover vulnerability

Vendor Ioss

Product WP MLM Unilevel

Weakness CWE-269

Published May 17, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.8/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Improper Privilege Management vulnerability in IOSS WP MLM Unilevel allows Privilege Escalation.This issue affects WP MLM Unilevel: from n/a through 4.0.

Explanation of Vulnerability in Simple Terms

02Summary

WP MLM Unilevel through version 4.0 contains a privilege management flaw that allows unauthenticated attackers to read sensitive data, modify site content, and disrupt service. The vulnerability requires no user interaction and is exploitable over the network. Site administrators should update immediately to a version newer than 4.0.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify site content, and disrupt service without authentication.

Potential impact on your site

04Site Impact

Attackers can access private data, alter posts/pages, and take the site offline without logging in.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 17, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-51476 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/269.html AskarLabs — CWE-269 write-up Improper Privilege Management

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