CVE-2026-6443 (GCVE-0-2026-6443)
Vulnerability from cvelistv5
Published
2026-04-17 06:44
Modified
2026-04-21 19:53
Severity ?
CWE
  • CWE-506 - Embedded Malicious Code
Summary
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.
Impacted products
Vendor Product Version
essentialplugin Accordion and Accordion Slider Version: 1.4.6
Create a notification for this product.
   essentialplugin Portfolio and Projects Version: 1.5.6
Create a notification for this product.
   essentialplugin Featured Post Creative Version: 1.5.7
Create a notification for this product.
   essentialplugin Post grid and filter ultimate Version: 1.7.4
Create a notification for this product.
   essentialplugin WP Featured Content and Slider Version: 1.7.6
Create a notification for this product.
   essentialplugin Post Ticker Ultimate Version: 1.7.6
Create a notification for this product.
   essentialplugin Trending/Popular Post Slider and Widget Version: 1.8.6
Create a notification for this product.
   essentialplugin Meta Slider and Carousel with Lightbox Version: 2.0.8
Create a notification for this product.
   essentialplugin Album and Image Gallery Plus Lightbox Version: 2.1.8
Create a notification for this product.
   essentialplugin Timeline and History slider Version: 2.4.5
Create a notification for this product.
   essentialplugin WP Blog and Widgets Version: 2.6.6
Create a notification for this product.
   essentialplugin Countdown Timer Ultimate Version: 2.6.9
Create a notification for this product.
   essentialplugin Blog Designer – Post and Widget Version: 2.7.7
Create a notification for this product.
   essentialplugin Team Slider and Team Grid Showcase plus Team Carousel Version: 2.8.6
Create a notification for this product.
   essentialplugin Video gallery and Player Version: 2.8.7
Create a notification for this product.
   essentialplugin Popup Maker and Popup Anything – Popup for opt-ins and Lead Generation Conversions Version: 2.9.1
Create a notification for this product.
   essentialplugin Testimonial Grid and Testimonial Slider plus Carousel with Rotator Widget Version: 3.5.6
Create a notification for this product.
   essentialplugin WP Responsive Recent Post Slider/Carousel Version: 3.7.1
Create a notification for this product.
   essentialplugin WP Slick Slider and Image Carousel Version: 3.7.8.1
Create a notification for this product.
   essentialplugin WP Logo Showcase Responsive Slider and Carousel Version: 3.8.7
Create a notification for this product.
   essentialplugin WP responsive FAQ with category plugin Version: 3.9.5
Create a notification for this product.
   essentialplugin WP News and Scrolling Widgets Version: 5.0.6
Create a notification for this product.
Show details on NVD website


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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-17T18:49:32.019393Z",
                "version": "2.0.3"
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            }
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        },
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          "product": "Portfolio and Projects",
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              "version": "1.5.6"
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          "defaultStatus": "unaffected",
          "product": "Countdown Timer Ultimate",
          "vendor": "essentialplugin",
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              "version": "2.6.9"
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          "defaultStatus": "unaffected",
          "product": "Team Slider and Team Grid Showcase plus Team Carousel",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.8.6"
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          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Video gallery and Player",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.8.7"
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        },
        {
          "defaultStatus": "unaffected",
          "product": "Popup Maker and Popup Anything \u2013 Popup for opt-ins and Lead Generation Conversions",
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          "versions": [
            {
              "status": "affected",
              "version": "2.9.1"
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        {
          "defaultStatus": "unaffected",
          "product": "Testimonial Grid and Testimonial Slider plus Carousel with Rotator Widget",
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          "versions": [
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              "version": "3.5.6"
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          "defaultStatus": "unaffected",
          "product": "WP Responsive Recent Post Slider/Carousel",
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          "product": "WP Slick Slider and Image Carousel",
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          "defaultStatus": "unaffected",
          "product": "WP Logo Showcase Responsive Slider and Carousel",
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            {
              "status": "affected",
              "version": "3.8.7"
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        },
        {
          "defaultStatus": "unaffected",
          "product": "WP responsive FAQ with category plugin",
          "vendor": "essentialplugin",
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            {
              "status": "affected",
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        {
          "defaultStatus": "unaffected",
          "product": "WP News and Scrolling Widgets",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.6"
            }
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          "type": "finder",
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        },
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          "lang": "en",
          "type": "finder",
          "value": "Damien"
        }
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        }
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    "dateUpdated": "2026-04-21T19:53:07.705Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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    }
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}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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