github - ghsa-4wvq-85hg-6256

GHSA-4WVQ-85HG-6256

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

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.

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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-54856"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "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"
    }
  ]
}

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

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

Summary

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)

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                "id": "CVE-2025-54856",
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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

GHSA-4WVQ-85HG-6256

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

Tags

Sightings

Nomenclature