{"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. 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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"}