
AI-Powered CVE Analysis for WordPress Plugins
We use AI to automate the differential analysis between vulnerable and patched plugin versions to understand and interpret the security issues. What we share here is research-grade proof of concept demonstrations that are then fed back into our endpoint firewall service.
WordPress Proof of Concepts
AI-assisted vulnerability analysis with PoC demonstration
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (featured-post-creative)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (wp-testimonial-with-widget)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (popup-anything-on-click)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (html5-videogallery-plus-player)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (album-and-image-gallery-plus-lightbox)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (blog-designer-for-post-and-widget)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (portfolio-and-projects)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (meta-slider-and-carousel-with-lightbox)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (wp-slick-slider-and-image-carousel)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (wp-logo-showcase-responsive-slider-slider)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2026-6443: Essentialplugin Plugins (Various Versions) – Injected Backdoor (sp-news-and-widget)
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam…
April 27, 2026
CVE-2025-54693: Form Block <= 1.5.5 – Unauthenticated Arbitrary File Upload (form-block)
The Form Block plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the files() function in all versions up to, and including, 1.5.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
April 26, 2026
CVE-2026-7106: Highland Software Custom Role Manager <= 1.0.0 – Authenticated (Subscriber+) Privilege Escalation (highland-software-custom-role-manager)
The Highland Software Custom Role Manager plugin for WordPress is vulnerable to Privilege Escalation in versions up to and including 1.0.0. This is due to insufficient authorization checks in the hscrm_save_user_roles() function, which is hooked to the personal_options_update action accessible by any authenticated user. This makes it possible for authenticated attackers, with Subscriber-level access or…
April 26, 2026
CVE-2025-53444: UserPro – Community and User Profile WordPress Plugin < 5.1.11 – Cross-Site Request Forgery (userpro)
The UserPro - Community and User Profile WordPress Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to 5.1.11. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick…
April 26, 2026
CVE-2026-40724: Client Portal (Pro) <= 5.6.2 – Authenticated (CP Client+) Arbitrary File Download (leco-client-portal)
The Client Portal Pro plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.6.2. This makes it possible for authenticated attackers, with Custom-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.
April 26, 2026
CVE-2025-15635: Smart Online Order for Clover <= 1.6.0 – Cross-Site Request Forgery (clover-online-orders)
The Smart Online Order for Clover plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.6.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a…
April 26, 2026
CVE-2026-39540: Shipment Tracker for Woocommerce <= 1.5.3.2 – Authenticated (Subscriber+) Stored Cross-Site Scripting (shipment-tracker-for-woocommerce)
The Shipment Tracker for Woocommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.5.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses…
April 26, 2026
CVE-2026-40725: WooCommerce Product Filters < 2.0.6 – Unauthenticated PHP Object Injection (woocommerce-product-filters)
The WooCommerce Product Filters plugin for WordPress is vulnerable to PHP Object Injection in versions up to 2.0.6 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin…
April 26, 2026
CVE-2025-15636: Video Gallery – YouTube Gallery & Responsive Video Playlist <= 3.5.1 – Authenticated (Contributor+) Stored Cross-Site Scripting (youtube-showcase)
The Video Gallery – YouTube Gallery & Responsive Video Playlist plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will…
April 26, 2026
CVE-2026-6372: Accept Cryptocurrencies with Plisio <= 2.0.6 – Missing Authorization (plisio-payment-gateway-for-woocommerce)
The Accept Cryptocurrencies with Plisio plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 2.0.6. This makes it possible for unauthenticated attackers to perform an unauthorized action.
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