CVE-2026-6419 Missing authorization in Wishlist Member
Authenticated subscribers can exploit missing authorization to disclose API keys and escalate privileges to administrator, leading to full site takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6419?
CVE-2026-6419 is a high-severity missing authorization vulnerability in Wishlist Member, published on 23 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WishList Member plugin for WordPress is vulnerable to Privilege Escalation via Missing Authorization in versions up to and including 3.30.1. This is due to the missing capability and nonce check in the ajax_get_screen() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to supply an arbitrary admin screen identifier via the data[url] parameter, causing the plugin to load and execute the administrative API configuration template without authorization. The rendered HTML, which contains the plugin's plaintext REST API Secret Key, is returned directly to the attacker in the AJAX JSON response. An attacker who obtains this key can authenticate to the WishList Member API, create a new membership level assigned the administrator WordPress role, and register an arbitrary administrator-level user account, resulting in complete site takeover.
Weakness: CWE-269
Which versions are affected by CVE-2026-6419?
How do I fix CVE-2026-6419?
No fix has been published for CVE-2026-6419 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-6419 being exploited?
There is no known exploitation of CVE-2026-6419 in the wild and no public exploit code.
Sources
Also known as GHSA-49p8-c5g6-5pj6.