CVE-2026-6898

WishList Member <= 3.30.1 - Missing Authorization to Authenticated (Subscriber+) Generate API Secret Key via 'wlm3_generate_api_key' AJAX action

2026-05-22 16:22
h0xilo

Strategic Overview

Status
Patched in 3.31.0
Affected Plugin
Wishlist Member
Affected Version
<= 3.30.1
CVSS
8.8High
Weakness type
CWE-269 · Improper Privilege Management
CVE
CVE-2026-6898
View all Wishlist Member vulnerabilities

At a glance

CVE-2026-6898 is a high-severity Improper Privilege Management vulnerability in the Wishlist Member WordPress plugin, affecting versions <= 3.30.1. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.31.0; sites on affected versions should update now. Disclosed May 2026, reported by h0xilo.

Vulnerability Overview

The Wishlist Member plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'WishListMember3_Hooks::generate_api_key' function in all versions up to, and including, 3.30.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update the REST API Secret Key, which can be used to create a new membership level assigned the administrator WordPress role, and register an arbitrary administrator-level user account, resulting in complete site takeover.

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 interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-269: Improper Privilege Management

Reaching this weakness in Wishlist Member <= 3.30.1 takes an account at Subscriber level or above. Improper privilege management means the code lets an account end up with capabilities its role should not have.

It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. For Wishlist Member the fix is 3.31.0: builds <= 3.30.1 are affected, anything from 3.31.0 onward is not.

Remediation

Update to version 3.31.0, 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: Wishlist Member 3.31.0 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-6898https://www.wordfence.com/threat-intel/vulnerabilities/id/05ce62ce-a02f-431e-95b1-ade38988e3adhttps://nvd.nist.gov/vuln/detail/CVE-2026-6898

Related records

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