Vulnerability-Lookup

JVNDB-2026-000012

Vulnerability from jvndb - Published: 2026-02-02 06:18 - Updated:2026-02-02 06:18

Severity

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

Summary

Multiple vulnerabilities in Cybozu Garoon

Details

Cybozu Garoon provided by Cybozu, Inc. contains multiple vulnerabilities listed below.

[CyVDB-3687]Cross-site scripting vulnerability in E-mail (CWE-79) - CVE-2026-20711
[CyVDB-3689]Cross-site scripting vulnerability in Message (CWE-79) - CVE-2026-22881
[CyVDB-3995]Improper input verification in Portal setting (CWE-231) - CVE-2026-22888

CVE-2026-20711 Masato Kinugawa reported this vulnerability to Cybozu, Inc. and Cybozu, Inc. reported it to JPCERT/CC to notify users of its solution through JVN. CVE-2026-22881, CVE-2026-22888 Cybozu, Inc. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN35265756/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-20711
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-22881
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-22888
	Cross-site Scripting(CWE-79)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Cybozu, Inc.

Cybozu Garoon

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000012.html",
  "dc:date": "2026-02-02T15:18+09:00",
  "dcterms:issued": "2026-02-02T15:18+09:00",
  "dcterms:modified": "2026-02-02T15:18+09:00",
  "description": "Cybozu Garoon provided by Cybozu, Inc. contains multiple vulnerabilities listed below.\r\n\u003cul\u003e\u003cli\u003e[CyVDB-3687]Cross-site scripting vulnerability in E-mail (CWE-79) - CVE-2026-20711\u003c/li\u003e\u003cli\u003e[CyVDB-3689]Cross-site scripting vulnerability in Message (CWE-79) - CVE-2026-22881\u003c/li\u003e\u003cli\u003e[CyVDB-3995]Improper input verification in Portal setting (CWE-231) - CVE-2026-22888\u003c/li\u003e\u003c/ul\u003eCVE-2026-20711\r\nMasato Kinugawa reported this vulnerability to Cybozu, Inc. and Cybozu, Inc. reported it to JPCERT/CC to notify users of its solution through JVN.\r\n\r\nCVE-2026-22881, CVE-2026-22888\r\nCybozu, Inc. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000012.html",
  "sec:cpe": {
    "#text": "cpe:/a:cybozu:garoon",
    "@product": "Cybozu Garoon",
    "@vendor": "Cybozu, Inc.",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "6.5",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000012",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN35265756/index.html",
      "@id": "JVN#35265756",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-20711",
      "@id": "CVE-2026-20711",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-22881",
      "@id": "CVE-2026-22881",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-22888",
      "@id": "CVE-2026-22888",
      "@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 Cybozu Garoon"
}

CVE-2026-20711 (GCVE-0-2026-20711)

Vulnerability from cvelistv5 – Published: 2026-02-02 06:37 – Updated: 2026-02-02 16:28

Summary

Cross-site scripting vulnerability exists in E-mail function of Cybozu Garoon 5.0.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.

Severity

6.5 (Medium)


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

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 16:05 UTC

CWE

CWE-79 - Cross-site scripting (XSS)

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://kb.cybozu.support/article/39081/
https://jvn.jp/en/jp/JVN35265756/

Impacted products

1 product

Vendor	Product	Version
Cybozu, Inc.	Cybozu Garoon	Affected: 5.0.0 to 6.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20711",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T16:05:10.499383Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-02T16:28:24.555Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "product": "Cybozu Garoon",
          "vendor": "Cybozu, Inc.",
          "versions": [
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              "status": "affected",
              "version": "5.0.0 to 6.0.3"
            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cross-site scripting vulnerability exists in E-mail function of Cybozu Garoon 5.0.0 to 6.0.3, which may allow an attacker to reset arbitrary users\u2019 passwords."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.0"
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          "scenarios": [
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              "lang": "en-US",
              "value": "GENERAL"
            }
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            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
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              "value": "GENERAL"
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              "description": "Cross-site scripting (XSS)",
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              "type": "CWE"
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      },
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          "url": "https://kb.cybozu.support/article/39081/"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN35265756/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
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    "datePublished": "2026-02-02T06:37:05.017Z",
    "dateReserved": "2026-01-27T00:30:57.072Z",
    "dateUpdated": "2026-02-02T16:28:24.555Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-22881 (GCVE-0-2026-22881)

Vulnerability from cvelistv5 – Published: 2026-02-02 06:37 – Updated: 2026-02-02 16:28

Summary

Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.

Severity

5.7 (Medium)


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

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 15:13 UTC

CWE

CWE-79 - Cross-site scripting (XSS)

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://kb.cybozu.support/article/39084/
https://jvn.jp/en/jp/JVN35265756/

Impacted products

1 product

Vendor	Product	Version
Cybozu, Inc.	Cybozu Garoon	Affected: 5.15.0 to 6.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22881",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T15:13:50.929520Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-02T16:28:15.355Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cybozu Garoon",
          "vendor": "Cybozu, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "5.15.0 to 6.0.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users\u2019 passwords."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
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            "baseSeverity": "MEDIUM",
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            "version": "4.0"
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              "lang": "en-US",
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          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "Cross-site scripting (XSS)",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-02T06:37:17.621Z",
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      },
      "references": [
        {
          "url": "https://kb.cybozu.support/article/39084/"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN35265756/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-22881",
    "datePublished": "2026-02-02T06:37:17.621Z",
    "dateReserved": "2026-01-27T00:34:57.021Z",
    "dateUpdated": "2026-02-02T16:28:15.355Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-22888 (GCVE-0-2026-22888)

Vulnerability from cvelistv5 – Published: 2026-02-02 06:37 – Updated: 2026-02-02 16:28

Summary

Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, potentially blocking access to the product.

Severity

4.9 (Medium)


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

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 15:13 UTC

CWE

CWE-231 - Improper handling of extra values

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://kb.cybozu.support/article/39083/
https://jvn.jp/en/jp/JVN35265756/

Impacted products

1 product

Vendor	Product	Version
Cybozu, Inc.	Cybozu Garoon	Affected: 5.0.0 to 6.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22888",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T15:13:27.952765Z",
                "version": "2.0.3"
              },
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "product": "Cybozu Garoon",
          "vendor": "Cybozu, Inc.",
          "versions": [
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              "status": "affected",
              "version": "5.0.0 to 6.0.3"
            }
          ]
        }
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        }
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        {
          "cvssV3_0": {
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
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        },
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          "url": "https://jvn.jp/en/jp/JVN35265756/"
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    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
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}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

JVNDB-2026-000012

CVE-2026-20711 (GCVE-0-2026-20711)

CVE-2026-22881 (GCVE-0-2026-22881)

CVE-2026-22888 (GCVE-0-2026-22888)

Tags

Sightings

Nomenclature

Related by attack behaviour