CVE-2026-4124 Missing authorization in Ziggeo
Authenticated subscribers can modify arbitrary plugin settings and data due to missing capability checks in the Ziggeo WordPress plugin.
- 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-2026-4124?
CVE-2026-4124 is a medium-severity missing authorization vulnerability in oliverfriedmann Ziggeo, published on 9 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Ziggeo plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.1.1. The wp_ajax_ziggeo_ajax handler only verifies a nonce (check_ajax_referer) but performs no capability checks via current_user_can(). Furthermore, the nonce ('ziggeo_ajax_nonce') is exposed to all logged-in users on every page via the wp_head and admin_head hooks . This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke multiple administrative operations including: saving arbitrary translation strings (translations_panel_save_strings via update_option('ziggeo_translations')), creating/updating/deleting event templates (event_editor_save_template/update_template/remove_template via update_option('ziggeo_events')), modifying SDK application settings (sdk_applications operations), and managing notifications (notification_handler via update_option('ziggeo_notifications')).
Weakness: CWE-862
Which versions are affected by CVE-2026-4124?
How do I fix CVE-2026-4124?
No fix has been published for CVE-2026-4124 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-2026-4124 being exploited?
There is no known exploitation of CVE-2026-4124 in the wild and no public exploit code.
Sources
Also known as GHSA-8w6x-cfx6-w753.