CVE-2026-6443
Essentialplugin Plugins (Various Versions) - Injected Backdoor
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.8EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
17 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 into the affected sites.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
essentialplugin · Accordion and Accordion Slideressentialplugin · Album and Image Gallery Plus Lightboxessentialplugin · Blog Designer – Post and Widgetessentialplugin · Countdown Timer Ultimateessentialplugin · Featured Post Creativeessentialplugin · Meta Slider and Carousel with Lightboxessentialplugin · Popup Maker and Popup Anything – Popup for opt-ins and Lead Generation Conversionsessentialplugin · Portfolio and Projectsessentialplugin · Post grid and filter ultimateessentialplugin · Post Ticker Ultimateessentialplugin · Team Slider and Team Grid Showcase plus Team Carouselessentialplugin · Testimonial Grid and Testimonial Slider plus Carousel with Rotator Widgetessentialplugin · Timeline and History slideressentialplugin · Trending/Popular Post Slider and Widgetessentialplugin · Video gallery and Playeressentialplugin · WP Blog and Widgetsessentialplugin · WP Featured Content and Slideressentialplugin · WP Logo Showcase Responsive Slider and Carouselessentialplugin · WP News and Scrolling Widgetsessentialplugin · WP responsive FAQ with category pluginessentialplugin · WP Responsive Recent Post Slider/Carouselessentialplugin · WP Slick Slider and Image CarouselWant to know if your infrastructure is exposed to this?
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