CVE-2026-4065
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
The Smart Slider 3 plugin for WordPress up to version 3.5.1.33 fails to check proper capabilities in multiple AJAX controller actions. Missing checkForCap() and validatePermission() calls allow authenticated attackers with Contributor-level access and above to enumerate slider metadata and create, modify, and delete image storage records.
Risk Assessment
Attackers can gain unauthorized access to slider data and manage image storage, potentially leading to information disclosure or content corruption.
Recommendation
Update the Smart Slider 3 plugin to the latest version that includes proper permission checks.
Original NVD description (English source)
The Smart Slider 3 plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on multiple wp_ajax_smart-slider3 controller actions in all versions up to, and including, 3.5.1.33. The display_admin_ajax() method does not call checkForCap() (which requires unfiltered_html capability), and several controller actions only validate the nonce (validateToken()) without calling validatePermission(). This makes it possible for authenticated attackers, with Contributor-level access and above, to enumerate slider metadata and create, modify, and delete image storage records by obtaining the nextend_nonce exposed on post editor pages.