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vuln-cve/data/2021/39xxx/CVE-2021-39222.json
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{
"containers": {
"cna": {
"affected": [
{
"product": "security-advisories",
"vendor": "nextcloud",
"versions": [
{
"status": "affected",
"version": "< 10.0.7"
},
{
"status": "affected",
"version": ">= 10.1.0, < 10.1.4"
},
{
"status": "affected",
"version": ">= 11.1.0, < 11.1.2"
},
{
"status": "affected",
"version": "< 11.2.0"
},
{
"status": "affected",
"version": ">= 12.0.0.alpha-1, < 12.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. As a workaround, use a browser that has support for Content-Security-Policy."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-11-15T18:30:13.000Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nextcloud/spreed/pull/542"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://hackerone.com/reports/1135481"
}
],
"source": {
"advisory": "GHSA-xhxq-f4vg-jw5g",
"discovery": "UNKNOWN"
},
"title": "XSS in Talk",
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-39222",
"STATE": "PUBLIC",
"TITLE": "XSS in Talk"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "security-advisories",
"version": {
"version_data": [
{
"version_value": "< 10.0.7"
},
{
"version_value": ">= 10.1.0, < 10.1.4"
},
{
"version_value": ">= 11.1.0, < 11.1.2"
},
{
"version_value": "< 11.2.0"
},
{
"version_value": ">= 12.0.0.alpha-1, < 12.0.0"
}
]
}
}
]
},
"vendor_name": "nextcloud"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. As a workaround, use a browser that has support for Content-Security-Policy."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-434: Unrestricted Upload of File with Dangerous Type"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g",
"refsource": "CONFIRM",
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g"
},
{
"name": "https://github.com/nextcloud/spreed/pull/542",
"refsource": "MISC",
"url": "https://github.com/nextcloud/spreed/pull/542"
},
{
"name": "https://hackerone.com/reports/1135481",
"refsource": "MISC",
"url": "https://hackerone.com/reports/1135481"
}
]
},
"source": {
"advisory": "GHSA-xhxq-f4vg-jw5g",
"discovery": "UNKNOWN"
}
}
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-04T01:58:18.181Z"
},
"title": "CVE Program Container",
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nextcloud/spreed/pull/542"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://hackerone.com/reports/1135481"
}
]
}
]
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2021-39222",
"datePublished": "2021-11-15T18:30:13.000Z",
"dateReserved": "2021-08-16T00:00:00.000Z",
"dateUpdated": "2024-08-04T01:58:18.181Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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