Vulnerability-Lookup

GHSA-C8JG-HC58-JRX2

Vulnerability from github – Published: 2026-04-17 09:31 – Updated: 2026-04-17 09:31

Details

The Accordion and Accordion Slider plugin for WordPress is vulnerable to an injected backdoor in version 1.4.6. 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.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-6443"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-506"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-17T07:16:03Z",
    "severity": "CRITICAL"
  },
  "details": "The Accordion and Accordion Slider plugin for WordPress is vulnerable to an injected backdoor in version 1.4.6. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin\u0027s they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam into the affected sites.",
  "id": "GHSA-c8jg-hc58-jrx2",
  "modified": "2026-04-17T09:31:18Z",
  "published": "2026-04-17T09:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6443"
    },
    {
      "type": "WEB",
      "url": "https://anchor.host/someone-bought-30-wordpress-plugins-and-planted-a-backdoor-in-all-of-them"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2597724a-9a39-4e46-b153-f42366f833ba?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-6443 (GCVE-0-2026-6443)

Vulnerability from cvelistv5 – Published: 2026-04-17 06:44 – Updated: 2026-04-21 19:53

Title

Essentialplugin Plugins (Various Versions) - Injected Backdoor

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.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-506 - Embedded Malicious Code

Assigner

Wordfence

References

URL

Tags

	https://www.wordfence.com/threat-intel/vulnerabil…
	https://anchor.host/someone-bought-30-wordpress-p…

Impacted products

Vendor

Product

Version

essentialplugin

Accordion and Accordion Slider

Affected: 1.4.6

essentialplugin	Portfolio and Projects	Affected: 1.5.6
essentialplugin	Featured Post Creative	Affected: 1.5.7
essentialplugin	Post grid and filter ultimate	Affected: 1.7.4
essentialplugin	WP Featured Content and Slider	Affected: 1.7.6
essentialplugin	Post Ticker Ultimate	Affected: 1.7.6
essentialplugin	Trending/Popular Post Slider and Widget	Affected: 1.8.6
essentialplugin	Meta Slider and Carousel with Lightbox	Affected: 2.0.8
essentialplugin	Album and Image Gallery Plus Lightbox	Affected: 2.1.8
essentialplugin	Timeline and History slider	Affected: 2.4.5
essentialplugin	WP Blog and Widgets	Affected: 2.6.6
essentialplugin	Countdown Timer Ultimate	Affected: 2.6.9
essentialplugin	Blog Designer – Post and Widget	Affected: 2.7.7
essentialplugin	Team Slider and Team Grid Showcase plus Team Carousel	Affected: 2.8.6
essentialplugin	Video gallery and Player	Affected: 2.8.7
essentialplugin	Popup Maker and Popup Anything – Popup for opt-ins and Lead Generation Conversions	Affected: 2.9.1
essentialplugin	Testimonial Grid and Testimonial Slider plus Carousel with Rotator Widget	Affected: 3.5.6
essentialplugin	WP Responsive Recent Post Slider/Carousel	Affected: 3.7.1
essentialplugin	WP Slick Slider and Image Carousel	Affected: 3.7.8.1
essentialplugin	WP Logo Showcase Responsive Slider and Carousel	Affected: 3.8.7
essentialplugin	WP responsive FAQ with category plugin	Affected: 3.9.5
essentialplugin	WP News and Scrolling Widgets	Affected: 5.0.6

Credits

Eu Joe Chegne Damien

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6443",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-17T18:49:32.019393Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-17T18:49:42.999Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Accordion and Accordion Slider",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.4.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Portfolio and Projects",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Featured Post Creative",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.7"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Post grid and filter ultimate",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.7.4"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Featured Content and Slider",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.7.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Post Ticker Ultimate",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.7.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Trending/Popular Post Slider and Widget",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "1.8.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Meta Slider and Carousel with Lightbox",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.8"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Album and Image Gallery Plus Lightbox",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.8"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Timeline and History slider",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.4.5"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Blog and Widgets",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Countdown Timer Ultimate",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.9"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Blog Designer \u2013 Post and Widget",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.7.7"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Team Slider and Team Grid Showcase plus Team Carousel",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.8.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Video gallery and Player",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.8.7"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Popup Maker and Popup Anything \u2013 Popup for opt-ins and Lead Generation Conversions",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "2.9.1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Testimonial Grid and Testimonial Slider plus Carousel with Rotator Widget",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "3.5.6"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Responsive Recent Post Slider/Carousel",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "3.7.1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Slick Slider and Image Carousel",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "3.7.8.1"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Logo Showcase Responsive Slider and Carousel",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "3.8.7"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP responsive FAQ with category plugin",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "3.9.5"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP News and Scrolling Widgets",
          "vendor": "essentialplugin",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.6"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Eu Joe Chegne"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Damien"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam into the affected sites."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-506",
              "description": "CWE-506 Embedded Malicious Code",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T19:53:07.705Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2597724a-9a39-4e46-b153-f42366f833ba?source=cve"
        },
        {
          "url": "https://anchor.host/someone-bought-30-wordpress-plugins-and-planted-a-backdoor-in-all-of-them/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-16T18:38:10.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-04-09T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Essentialplugin Plugins (Various Versions) - Injected Backdoor"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-6443",
    "datePublished": "2026-04-17T06:44:49.128Z",
    "dateReserved": "2026-04-16T18:22:16.366Z",
    "dateUpdated": "2026-04-21T19:53:07.705Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-C8JG-HC58-JRX2

CVE-2026-6443 (GCVE-0-2026-6443)

Tags

Sightings

Nomenclature