Vulnerability-Lookup

GHSA-4FCC-VRWX-V754

Vulnerability from github – Published: 2026-05-16 03:31 – Updated: 2026-05-16 03:31

Details

The Essential Chat Support plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.0.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to reset all plugin configuration settings — including general settings, display rules, custom CSS, and WooCommerce tab settings — to their defaults by sending a POST request with ecs_reset_settings=1.

Severity

5.3 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-8681"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-16T03:16:21Z",
    "severity": "MODERATE"
  },
  "details": "The Essential Chat Support plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.0.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to reset all plugin configuration settings \u2014 including general settings, display rules, custom CSS, and WooCommerce tab settings \u2014 to their defaults by sending a POST request with ecs_reset_settings=1.",
  "id": "GHSA-4fcc-vrwx-v754",
  "modified": "2026-05-16T03:31:27Z",
  "published": "2026-05-16T03:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8681"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/admin/settings/register-settings.php#L47"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/ecs-functions.php#L33"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6b98ea22-4c82-45c6-8e29-75cc9a9185be?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-8681 (GCVE-0-2026-8681)

Vulnerability from cvelistv5 – Published: 2026-05-16 02:26 – Updated: 2026-05-18 17:40

Title

Essential Chat Support <= 1.0.1 - Missing Authorization to Unauthenticated Settings Reset via 'ecs_reset_settings' Parameter

Summary

Severity

5.3 (Medium)


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

CWE

CWE-862 - Missing Authorization

Assigner

Wordfence

References

3 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/essent…
https://plugins.trac.wordpress.org/browser/essent…

Impacted products

1 product

Vendor	Product	Version
essentialplugin	Essential Chat Support	Affected: 0 , ≤ 1.0.1 (semver)

Credits

Abhirup Konwar

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-8681",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T17:39:33.065247Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-18T17:40:28.240Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Essential Chat Support",
          "vendor": "essentialplugin",
          "versions": [
            {
              "lessThanOrEqual": "1.0.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Abhirup Konwar"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Essential Chat Support plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.0.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to reset all plugin configuration settings \u2014 including general settings, display rules, custom CSS, and WooCommerce tab settings \u2014 to their defaults by sending a POST request with ecs_reset_settings=1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-16T02:26:50.140Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6b98ea22-4c82-45c6-8e29-75cc9a9185be?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/admin/settings/register-settings.php#L47"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/ecs-functions.php#L33"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-15T13:35:51.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Essential Chat Support \u003c= 1.0.1 - Missing Authorization to Unauthenticated Settings Reset via \u0027ecs_reset_settings\u0027 Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-8681",
    "datePublished": "2026-05-16T02:26:50.140Z",
    "dateReserved": "2026-05-15T13:35:04.229Z",
    "dateUpdated": "2026-05-18T17:40:28.240Z",
    "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-4FCC-VRWX-V754

CVE-2026-8681 (GCVE-0-2026-8681)

Tags

Sightings

Nomenclature