CVE-2026-4124
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
The Ziggeo plugin for WordPress up to version 3.1.1 lacks authorization in the wp_ajax_ziggeo_ajax handler. It only verifies a nonce, not user capabilities. The nonce is exposed to all logged-in users. Authenticated attackers (Subscriber+) can perform many admin operations like saving translations, managing event templates, modifying SDK settings, and managing notifications.
Risk Assessment
Low-privileged authenticated users can take over plugin configuration, leading to defacement or further attacks.
Recommendation
Update the Ziggeo plugin to the latest version or apply temporary mitigations (e.g., remove unused accounts).
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Original NVD description (English source)
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')).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS