cvelistv5 - cve-2025-54856

CVE-2025-54856 (GCVE-0-2025-54856)

Vulnerability from cvelistv5 – Published: 2025-10-23 04:10 – Updated: 2025-10-23 15:18

Summary

Movable Type contains a stored cross-site scripting vulnerability in Edit ContentData page. If crafted input is stored by an attacker with "ContentType Management" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit ContentData page.

Severity ?

4.8 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

4.6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CWE

CWE-79 - Cross-site scripting (XSS)

Assigner

jpcert

References

URL

Tags

	https://movabletype.org/news/2025/10/mt-880-relea…
	https://www.sixapart.jp/movabletype/news/2025/10/…
	https://jvn.jp/en/jp/JVN24333679/

Impacted products

Vendor

Product

Version

Six Apart Ltd.

Movable Type (Software Edition)

Affected: 8.4.0 to 8.4.3 (8.4 series)
Affected: 8.0.0 to 8.0.7 (8.0 series)
Affected: 7 r.5509 and earlier (7 series)

Six Apart Ltd.	Movable Type Advanced (Software Edition)	Affected: 8.4.0 to 8.4.3 (8.4 series) Affected: 8.0.0 to 8.0.7 (8.0 series) Affected: 7 r.5509 and earlier (7 series)
Six Apart Ltd.	Movable Type Premium (Software Edition)	Affected: 2.10 and earlier (2 series) Affected: 1.67 and earlier (1 series)
Six Apart Ltd.	Movable Type Premium (Advanced Edition) (Software Edition)	Affected: 2.10 and earlier (2 series) Affected: 1.67 and earlier (1 series)
Six Apart Ltd.	Movable Type (Cloud Edition)	Affected: 8.7.0 (8 series) Affected: 7 r.5509 (7 series)
Six Apart Ltd.	Movable Type Premium (Cloud Edition)	Affected: 2.10 (2 series) Affected: 1.67 (1 series)

Show details on NVD website

JSON

To clipboard

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JVNDB-2025-000090

Vulnerability from jvndb - Published: 2025-10-22 13:54 - Updated:2025-10-22 13:54

Severity ?

4.8 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Summary

Multiple stored cross-site scripting vulnerabilities in Movable Type

Details

Movable Type provided by Six Apart Ltd. contains multiple stored cross-site scripting vulnerabilities listed below.

Stored cross-site scripting vulnerability in Edit ContentData page (CWE-79) - CVE-2025-54856
Stored cross-site scripting vulnerability in Edit CategorySet of ContentType page (CWE-79) - CVE-2025-62499

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

Type

URL

	JVN	https://jvn.jp/en/jp/JVN24333679/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-54856
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-62499
	Cross-site Scripting(CWE-79)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	Six Apart, Ltd.	Movable Type
	Six Apart, Ltd.	Movable Type Advanced
	Six Apart, Ltd.	Movable Type Premium
	Six Apart, Ltd.	Movable Type Premium (Advanced Edition)

Show details on JVN DB website

JSON

To clipboard

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  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000090.html",
  "dc:date": "2025-10-22T13:54+09:00",
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  "dcterms:modified": "2025-10-22T13:54+09:00",
  "description": "Movable Type provided by Six Apart Ltd. contains multiple stored cross-site scripting vulnerabilities listed below.\r\n\u003cul\u003e\r\n\u003cli\u003eStored cross-site scripting vulnerability in Edit ContentData page (CWE-79) - CVE-2025-54856\u003c/li\u003e\r\n\u003cli\u003eStored cross-site scripting vulnerability in Edit CategorySet of ContentType page (CWE-79) - CVE-2025-62499\u003c/li\u003e\r\n\u003c/ul\u003e\r\nSix Apart Ltd. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.\r\nJPCERT/CC and Six Apart Ltd. coordinated under the Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000090.html",
  "sec:cpe": [
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      "#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"
    },
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      "@product": "Movable Type Premium (Advanced Edition)",
      "@vendor": "Six Apart, Ltd.",
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    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2025-000090",
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  "title": "Multiple stored cross-site scripting vulnerabilities in Movable Type"
}

GHSA-4WVQ-85HG-6256

Vulnerability from github – Published: 2025-10-23 06:31 – Updated: 2025-10-23 06:31

Details

Severity ?

4.8 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

4.6 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-54856"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-23T05:15:32Z",
    "severity": "MODERATE"
  },
  "details": "Movable Type contains a stored cross-site scripting vulnerability in Edit ContentData page. If crafted input is stored by an attacker with \"ContentType Management\" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit ContentData page.",
  "id": "GHSA-4wvq-85hg-6256",
  "modified": "2025-10-23T06:31:00Z",
  "published": "2025-10-23T06:31:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54856"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN24333679"
    },
    {
      "type": "WEB",
      "url": "https://movabletype.org/news/2025/10/mt-880-released.html"
    },
    {
      "type": "WEB",
      "url": "https://www.sixapart.jp/movabletype/news/2025/10/22-1055.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

FKIE_CVE-2025-54856

Vulnerability from fkie_nvd - Published: 2025-10-23 05:15 - Updated: 2025-10-27 13:20

Severity ?

4.8 (Medium) - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN24333679/
	vultures@jpcert.or.jp	https://movabletype.org/news/2025/10/mt-880-released.html
	vultures@jpcert.or.jp	https://www.sixapart.jp/movabletype/news/2025/10/22-1055.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "lang": "en",
      "value": "Movable Type contains a stored cross-site scripting vulnerability in Edit ContentData page. If crafted input is stored by an attacker with \"ContentType Management\" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit ContentData page."
    }
  ],
  "id": "CVE-2025-54856",
  "lastModified": "2025-10-27T13:20:33.350",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 2.7,
        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 4.6,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-10-23T05:15:32.583",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://jvn.jp/en/jp/JVN24333679/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://movabletype.org/news/2025/10/mt-880-released.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://www.sixapart.jp/movabletype/news/2025/10/22-1055.html"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "vultures@jpcert.or.jp",
      "type": "Primary"
    }
  ]
}

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.

Action not permitted

CVE-2025-54856 (GCVE-0-2025-54856)

JVNDB-2025-000090

GHSA-4WVQ-85HG-6256

FKIE_CVE-2025-54856

Tags

Sightings

Nomenclature