{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2020-11023",
  "revision": 1,
  "title": "jQuery — option elements execute even after sanitising",
  "summary": "jQuery from 1.0.3 before 3.5.0 runs code from option elements passed into its document manipulation methods, even where the markup was sanitised first — so the usual cleaning step is not enough.",
  "source_type": "cve",
  "severity": "medium",
  "cvss": {
    "score": 6.1,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "version": "3.1"
  },
  "epss": 0.84887,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": true,
    "attack_complexity": "low",
    "kev_added": "2025-01-23",
    "prerequisites": "The application must pass attacker-influenced markup into a jQuery manipulation method."
  },
  "remediation": {
    "patch_available": true,
    "fixed_in": [
      "jQuery 3.5.0"
    ]
  },
  "mitre_attack": [
    "T1059.007"
  ],
  "kill_chain": "execution",
  "recommended_action": "Upgrade jQuery to 3.5.0 or later wherever it is bundled; many products ship their own copy, so a single application update will not cover the estate.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2020-11023",
      "retrieved_at": "2026-09-24T12:03:01.274Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-09-24T12:03:01.274Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2020-11023",
      "retrieved_at": "2026-09-24T12:03:01.274Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2020-11023",
      "retrieved_at": "2026-09-24T12:03:01.274Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11023",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "vendor_advisory",
      "url": "https://blog.jquery.com/2020/04/10/jquery-3-5-0-released"
    },
    {
      "type": "vendor_advisory",
      "url": "https://jquery.com/upgrade-guide/3.5/"
    },
    {
      "type": "vendor_advisory",
      "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
    }
  ],
  "published_at": "2020-04-29T21:15:11.743Z",
  "issued_at": "2026-09-24T12:03:01.274Z",
  "tags": [
    "jquery",
    "javascript",
    "cross-site-scripting",
    "supply-chain",
    "kev"
  ]
}