{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2021-21338",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-21338",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2021-03-23T01:45:14.000Z",
    "updatedAt": "2024-08-03T18:09:15.687Z",
    "importedAt": "2026-10-24T01:56:26.894Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Open Redirection in Login Handling",
      "summary": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that Login Handling is susceptible to open redirection which allows attackers redirecting to arbitrary content, and conducting phishing attacks. No authentication is required in order to exploit this vulnerability. This is fixed in versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.",
      "affected": [
        {
          "vendor": "TYPO3",
          "product": "TYPO3.CMS",
          "versions": [
            {
              "version": ">= 6.2.0, <= 6.2.56",
              "status": "affected"
            },
            {
              "version": ">= 7.0.0, <= 7.6.50",
              "status": "affected"
            },
            {
              "version": ">= 8.0.0, <= 8.7.39",
              "status": "affected"
            },
            {
              "version": ">= 9.0.0, <= 9.5.24",
              "status": "affected"
            },
            {
              "version": ">= 10.0.0, <= 10.4.13",
              "status": "affected"
            },
            {
              "version": ">= 11.0.0, <= 11.1.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}