{"id":"CVE-2021-32622","state":"PUBLISHED","title":"File upload local preview can run embedded scripts after user interaction","description":"Matrix-React-SDK is a react-based SDK for inserting a Matrix chat/voip client into a web page. Before version 3.21.0, when uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file. This can only occur after several user interactions to open the preview in a separate tab. This only impacts the local user while in the process of uploading. It cannot be exploited remotely or by other users. This vulnerability is patched in version 3.21.0.","publishedAt":"2021-05-17T19:35:11.000Z","updatedAt":"2024-08-03T23:25:30.863Z","severity":{"score":4.2,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["matrix-org matrix-react-sdk"],"affected":[{"vendor":"matrix-org","product":"matrix-react-sdk","versions":[{"version":"< 3.21.0","status":"affected"}]}],"references":["https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv","https://github.com/matrix-org/matrix-react-sdk/pull/5981"],"weaknesses":["CWE-74"],"ingestedAt":"2026-10-29T19:48:33.225Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/32xxx/CVE-2021-32622.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-32622","state":"PUBLISHED","datePublished":"2021-05-17T19:35:11.000Z","dateUpdated":"2024-08-03T23:25:30.863Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-05-12T00:00:00.000Z"},"containers":{"cna":{"title":"File upload local preview can run embedded scripts after user interaction","descriptions":[{"lang":"en","value":"Matrix-React-SDK is a react-based SDK for inserting a Matrix chat/voip client into a web page. Before version 3.21.0, when uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file. This can only occur after several user interactions to open the preview in a separate tab. This only impacts the local user while in the process of uploading. It cannot be exploited remotely or by other users. This vulnerability is patched in version 3.21.0."}],"affected":[{"vendor":"matrix-org","product":"matrix-react-sdk","versions":[{"version":"< 3.21.0","status":"affected"}]}],"references":[{"url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/matrix-org/matrix-react-sdk/pull/5981","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.2,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-74","description":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2021-05-17T19:35:11.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-8796-gc9j-63rv","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-32622","STATE":"PUBLIC","TITLE":"File upload local preview can run embedded scripts after user interaction"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"matrix-react-sdk","version":{"version_data":[{"version_value":"< 3.21.0"}]}}]},"vendor_name":"matrix-org"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Matrix-React-SDK is a react-based SDK for inserting a Matrix chat/voip client into a web page. Before version 3.21.0, when uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file. This can only occur after several user interactions to open the preview in a separate tab. This only impacts the local user while in the process of uploading. It cannot be exploited remotely or by other users. This vulnerability is patched in version 3.21.0."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.2,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}]},"references":{"reference_data":[{"name":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv","refsource":"CONFIRM","url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv"},{"name":"https://github.com/matrix-org/matrix-react-sdk/pull/5981","refsource":"MISC","url":"https://github.com/matrix-org/matrix-react-sdk/pull/5981"}]},"source":{"advisory":"GHSA-8796-gc9j-63rv","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/matrix-org/matrix-react-sdk/pull/5981","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:25:30.863Z"}}]}}}