CVE-2026-3477 PZ Frontend Manager <= 1.0.6 - Missing Authorization to Arbitrary User Deletion via 'dataType' Parameter
Authenticated attackers can delete arbitrary WordPress users, including administrators, due to missing authorization checks in the PZ Frontend Manager plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3477?
CVE-2026-3477 is a medium-severity missing authorization vulnerability in projectzealous01 PZ Frontend Manager, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The PZ Frontend Manager plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.0.6. The pzfm_user_request_action_callback() function, registered via the wp_ajax_pzfm_user_request_action action hook, lacks both capability checks and nonce verification. This function handles user activation, deactivation, and deletion operations. When the 'dataType' parameter is set to 'delete', the function calls wp_delete_user() on all provided user IDs without verifying that the current user has the appropriate permissions. Notably, the similar pzfm_remove_item_callback() function does check pzfm_can_delete_user() before performing deletions, indicating this was an oversight. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary WordPress users (including administrators) by sending a crafted request to the AJAX endpoint.
Weakness: CWE-862
Which versions are affected by CVE-2026-3477?
How do I fix CVE-2026-3477?
No fix has been published for CVE-2026-3477 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-2026-3477 being exploited?
There is no known exploitation of CVE-2026-3477 in the wild and no public exploit code.
Sources
Also known as GHSA-qm3x-rf89-9v8m.