CVE-2026-20711 (GCVE-0-2026-20711)
Vulnerability from cvelistv5 – Published: 2026-02-02 06:37 – Updated: 2026-02-02 16:28
VLAI
EPSS
VEX
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)
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
References
2 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cybozu, Inc. | Cybozu Garoon |
Affected:
5.0.0 to 6.0.3
|
guessed |
{
"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": [
{
"product": "Cybozu Garoon",
"vendor": "Cybozu, Inc.",
"versions": [
{
"status": "affected",
"version": "5.0.0 to 6.0.3"
}
]
}
],
"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"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"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",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site scripting (XSS)",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-02T06:37:05.017Z",
"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"shortName": "jpcert"
},
"references": [
{
"url": "https://kb.cybozu.support/article/39081/"
},
{
"url": "https://jvn.jp/en/jp/JVN35265756/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"assignerShortName": "jpcert",
"cveId": "CVE-2026-20711",
"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",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-20711",
"date": "2026-09-19",
"epss": "0.00234",
"percentile": "0.14572"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "Cybozu Garoon",
"vendor": "Cybozu, Inc.",
"versions": [
{
"status": "affected",
"version": "5.0.0 to 6.0.3"
}
]
}
],
"source": "vultures@jpcert.or.jp"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:*",
"matchCriteriaId": "562B8A87-363B-4C9D-BB9A-62F2C70AD1C2",
"versionEndExcluding": "6.0.3",
"versionStartIncluding": "5.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"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."
},
{
"lang": "es",
"value": "Vulnerabilidad de cross-site scripting existe en la funci\u00f3n de correo electr\u00f3nico de Cybozu Garoon 5.0.0 a 6.0.3, lo que puede permitir a un atacante restablecer las contrase\u00f1as de usuarios arbitrarios."
}
],
"id": "CVE-2026-20711",
"lastModified": "2026-06-17T10:17:43.963",
"metrics": {
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
"version": "3.0"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "vultures@jpcert.or.jp",
"type": "Secondary"
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"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": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"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/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": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "vultures@jpcert.or.jp",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20711",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-02T16:05:10.499383Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-02-02T07:16:45.100",
"references": [
{
"source": "vultures@jpcert.or.jp",
"tags": [
"Third Party Advisory"
],
"url": "https://jvn.jp/en/jp/JVN35265756/"
},
{
"source": "vultures@jpcert.or.jp",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.cybozu.support/article/39081/"
}
],
"sourceIdentifier": "vultures@jpcert.or.jp",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "vultures@jpcert.or.jp",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-02-03T09:18:27+00:00",
"cve": "CVE-2026-20711",
"id": "CVE-2026-20711",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2026-20711",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20711.json",
"version": "3"
},
"vulnrichment": {
"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": "2026-02-02T16:05:16.230Z",
"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": "5.0.0 to 6.0.3"
}
]
}
],
"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"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"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",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site scripting (XSS)",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-02T06:37:05.017Z",
"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"shortName": "jpcert"
},
"references": [
{
"url": "https://kb.cybozu.support/article/39081/"
},
{
"url": "https://jvn.jp/en/jp/JVN35265756/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"assignerShortName": "jpcert",
"cveId": "CVE-2026-20711",
"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"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
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.
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.
Loading…
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.
Loading…