CVE-2024-53810

Simple User Registration <= 5.5 - Missing Authorization to User Deletion

2024-12-02 00:00
stealthcopter

Strategic Overview

Status
Patched in 6.0
Affected Plugin
MemberHero – Simple User Registration & Login
Affected Version
<= 5.5
CVSS
9.1Critical
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2024-53810
View all MemberHero – Simple User Registration & Login vulnerabilities

At a glance

CVE-2024-53810 is a critical-severity Missing Authorization vulnerability in the MemberHero WordPress plugin, affecting versions <= 5.5. It carries a CVSS score of 9.1 (reachable over the network; low attack complexity; high integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 6.0; sites on affected versions should update now. Disclosed December 2024, reported by stealthcopter.

Vulnerability Overview

The Simple User Registration plugin for WordPress is vulnerable to unauthorized access to the user deletion feature due to a missing capability check in all versions up to, and including, 5.5. This makes it possible for unauthenticated attackers to delete arbitrary users.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on integrity, availability.

CWE-862: Missing Authorization

Reaching this weakness in MemberHero <= 5.5 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For MemberHero the fix is 6.0: builds <= 5.5 are affected, anything from 6.0 onward is not.

Remediation

Update to version 6.0, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: MemberHero 6.0 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-53810https://www.wordfence.com/threat-intel/vulnerabilities/id/e074c818-8432-4ee1-a376-0abde3666bc3https://nvd.nist.gov/vuln/detail/CVE-2024-53810

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C