JVNDB-2026-000020

Vulnerability from jvndb - Published: 2026-02-04 16:15 - Updated:2026-02-04 16:15
Severity ?
6.5 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Summary
Multiple vulnerabilities in Movable Type
Details
Movable Type provided by Six Apart Ltd. contains multiple vulnerabilities listed below.
  • Stored cross-site scripting vulnerability in Edit Comment (CWE-79) - CVE-2026-21393
  • Stored cross-site scripting vulnerability in Export Sites (CWE-79) - CVE-2026-22875
  • Unrestricted upload of file with dangerous type (CWE-434) - CVE-2026-23704
  • Improper neutralization of formula elements in a CSV file (CWE-1236) - CVE-2026-24447
CVE-2026-21393, CVE-2026-22875 Kentaro Ishii of GMO Cybersecurity by Ierae, Inc. reported these vulnerabilities to IPA. CVE-2026-23704, CVE-2026-24447 Six Apart Ltd. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN. JPCERT/CC and Six Apart Ltd. coordinated under the Information Security Early Warning Partnership.
References
Impacted products
Show details on JVN DB website
To clipboard 

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000020.html",
  "dc:date": "2026-02-04T16:15+09:00",
  "dcterms:issued": "2026-02-04T16:15+09:00",
  "dcterms:modified": "2026-02-04T16:15+09:00",
  "description": "Movable Type provided by Six Apart Ltd. contains multiple vulnerabilities listed below.\u003cul\u003e\u003cli\u003eStored cross-site scripting vulnerability in Edit Comment (CWE-79) - CVE-2026-21393\u003c/li\u003e\u003cli\u003eStored cross-site scripting vulnerability in Export Sites (CWE-79) - CVE-2026-22875\u003c/li\u003e\u003cli\u003eUnrestricted upload of file with dangerous type (CWE-434) - CVE-2026-23704\u003c/li\u003e\u003cli\u003eImproper neutralization of formula elements in a CSV file (CWE-1236) - CVE-2026-24447\u003c/li\u003e\u003c/ul\u003eCVE-2026-21393, CVE-2026-22875\r\nKentaro Ishii of GMO Cybersecurity by Ierae, Inc. reported these vulnerabilities to IPA.\r\n\r\nCVE-2026-23704, CVE-2026-24447\r\nSix Apart Ltd. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.\r\n\r\nJPCERT/CC and Six Apart Ltd. coordinated under the Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000020.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:sixapart:movable_type",
      "@product": "Movable Type",
      "@vendor": "Six Apart, Ltd.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:sixapart:movable_type_advanced",
      "@product": "Movable Type Advanced",
      "@vendor": "Six Apart, Ltd.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:sixapart:movable_type_premium",
      "@product": "Movable Type Premium",
      "@vendor": "Six Apart, Ltd.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:sixapart:movable_type_premium_advanced",
      "@product": "Movable Type Premium (Advanced Edition)",
      "@vendor": "Six Apart, Ltd.",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "6.5",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000020",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN45405689/index.html",
      "@id": "JVN#45405689",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-21393",
      "@id": "CVE-2026-21393",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-22875",
      "@id": "CVE-2026-22875",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-23704",
      "@id": "CVE-2026-23704",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-24447",
      "@id": "CVE-2026-24447",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-79",
      "@title": "Cross-site Scripting(CWE-79)"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple vulnerabilities in Movable Type"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.