CVE-2022-1903

ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup <= 3.4.7 -Authentication Bypass via Password Reset Weakness

2022-06-06 00:00
cydave

Strategic Overview

Status
Patched in 3.4.8
Affected Plugin
ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup
Affected Version
<= 3.4.7
CVSS
9.8Critical
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2022-1903
View all ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup vulnerabilities

At a glance

CVE-2022-1903 is a critical-severity Missing Authorization vulnerability in the ARMember WordPress plugin, affecting versions <= 3.4.7. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.4.8; sites on affected versions should update now. Disclosed June 2022, reported by cydave.

Vulnerability Overview

The ARMember WordPress plugin before 3.4.8 is vulnerable to account takeover (even the administrator) due to missing nonce and authorization checks in an AJAX action available to unauthenticated users, allowing them to change the password of arbitrary users by knowing their username

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 confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

Reaching this weakness in ARMember <= 3.4.7 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 ARMember the fix is 3.4.8: builds <= 3.4.7 are affected, anything from 3.4.8 onward is not.

Remediation

Update to version 3.4.8, 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: ARMember 3.4.8 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-1903https://www.wordfence.com/threat-intel/vulnerabilities/id/9831ebf6-a6a6-4495-8cda-969c7d7d3a6chttps://nvd.nist.gov/vuln/detail/CVE-2022-1903

Related records

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