CVE-2023-41956 HIGH

CVE-2023-41956: WordPress Simple Membership plugin <= 4.3.4 - Authenticated Account Takeover vulnerability

Vendor Smp7, Wp.insider

Product Simple Membership

Weakness CWE-287 · Improper authentication

Published May 17, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Improper Authentication vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.3.4.

Explanation of Vulnerability in Simple Terms

02Summary

Simple Membership versions up to 4.3.4 contain an authentication bypass vulnerability. An attacker with low-level user privileges can gain unauthorized access to sensitive data and modify site content. The vulnerability stems from improper authentication checks that fail to properly validate user credentials or session state.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify site content, and perform administrative actions without proper authorization.

Potential impact on your site

04Site Impact

Compromised user accounts can access restricted content, modify posts/pages, and escalate privileges within the membership system.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account on the site; no 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-2023-41956 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/287.html AskarLabs — CWE-287 write-up Improper Authentication

Related vulnerabilities

Identifiers

CVE CVE-2023-41956

CWE CWE-287

CVSS 8.8 / HIGH

Affected versions