FKIE_CVE-2020-36838

Vulnerability from fkie_nvd - Published: 2024-10-16 07:15 - Updated: 2026-06-17 03:16
Severity
7.4 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Summary
The Facebook Chat Plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the wp_ajax_update_options function in versions up to, and including, 1.5. This flaw makes it possible for low-level authenticated attackers to connect their own Facebook Messenger account to any site running the vulnerable plugin and engage in chats with site visitors on affected sites.
References
security@wordfence.comhttps://www.wordfence.com/blog/2020/08/the-official-facebook-chat-plugin-created-vector-for-social-engineering-attacks/
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/36ae4183-5fa7-484c-b858-5df10ae3d3f2?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Facebook Chat Plugin \u2013 Live Chat Plugin for WordPress",
          "vendor": "facebook",
          "versions": [
            {
              "lessThan": "1.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Facebook Chat Plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the wp_ajax_update_options function in versions up to, and including, 1.5. This flaw makes it possible for low-level authenticated attackers to connect their own Facebook Messenger account to any site running the vulnerable plugin and engage in chats with site visitors on affected sites."
    },
    {
      "lang": "es",
      "value": "El complemento Facebook Chat para WordPress es vulnerable a la omisi\u00f3n de la autorizaci\u00f3n debido a una falta de verificaci\u00f3n de capacidad en la funci\u00f3n wp_ajax_update_options en versiones hasta la 1.5 incluida. Esta falla permite que atacantes autenticados de bajo nivel conecten su propia cuenta de Facebook Messenger a cualquier sitio que ejecute el complemento vulnerable y participen en chats con los visitantes del sitio en los sitios afectados."
    }
  ],
  "id": "CVE-2020-36838",
  "lastModified": "2026-06-17T03:16:17.900",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 3.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-36838",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-16T19:13:34.247146Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-16T07:15:09.200",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/blog/2020/08/the-official-facebook-chat-plugin-created-vector-for-social-engineering-attacks/"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/36ae4183-5fa7-484c-b858-5df10ae3d3f2?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}


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