{
  "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-2025-64781",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-64781",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-12T05:02:58.824Z",
    "updatedAt": "2025-12-12T20:26:03.855Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "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": null,
      "summary": "In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, \"External page display restriction\" is set to \"Do not limit\" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL.",
      "affected": [
        {
          "vendor": "Japan Total System Co.,Ltd.",
          "product": "GroupSession Free edition",
          "versions": [
            {
              "version": "prior to ver5.7.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Japan Total System Co.,Ltd.",
          "product": "GroupSession byCloud",
          "versions": [
            {
              "version": "prior to ver5.7.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Japan Total System Co.,Ltd.",
          "product": "GroupSession ZION",
          "versions": [
            {
              "version": "prior to ver5.7.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}