FKIE_CVE-2026-59167

Vulnerability from fkie_nvd - Published: 2026-09-23 14:17 - Updated: 2026-09-24 15:17
Severity
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application's browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11.
References
security-advisories@github.comhttps://github.com/JiHong88/suneditor/commit/a94ace269c7102bfb6de58a27a6547bc4eb09045
security-advisories@github.comhttps://github.com/JiHong88/suneditor/issues/1646
security-advisories@github.comhttps://github.com/JiHong88/suneditor/releases/tag/2.47.11
security-advisories@github.comhttps://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "suneditor",
          "vendor": "JiHong88",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.47.11"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application\u0027s browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11."
    }
  ],
  "id": "CVE-2026-59167",
  "lastModified": "2026-09-24T15:17:25.303",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-59167",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-24T14:24:21.114425Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-23T14:17:07.923",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JiHong88/suneditor/commit/a94ace269c7102bfb6de58a27a6547bc4eb09045"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JiHong88/suneditor/issues/1646"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JiHong88/suneditor/releases/tag/2.47.11"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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