{"id":"CVE-2021-39183","state":"PUBLISHED","title":"Unsafe inline XSS Owncast","description":"Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-src is required to be set to blob for the video player.","publishedAt":"2021-12-14T20:05:12.000Z","updatedAt":"2024-08-04T01:58:18.143Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["owncast owncast"],"affected":[{"vendor":"owncast","product":"owncast","versions":[{"version":"< 0.0.9","status":"affected"}]}],"references":["https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T19:48:52.666Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/39xxx/CVE-2021-39183.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-39183","state":"PUBLISHED","datePublished":"2021-12-14T20:05:12.000Z","dateUpdated":"2024-08-04T01:58:18.143Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-08-16T00:00:00.000Z"},"containers":{"cna":{"title":"Unsafe inline XSS Owncast","descriptions":[{"lang":"en","value":"Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-src is required to be set to blob for the video player."}],"affected":[{"vendor":"owncast","product":"owncast","versions":[{"version":"< 0.0.9","status":"affected"}]}],"references":[{"url":"https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2021-12-14T20:05:12.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-2hfj-cxw7-g45p","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-39183","STATE":"PUBLIC","TITLE":"Unsafe inline XSS Owncast"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"owncast","version":{"version_data":[{"version_value":"< 0.0.9"}]}}]},"vendor_name":"owncast"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-src is required to be set to blob for the video player."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}]},"references":{"reference_data":[{"name":"https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p","refsource":"CONFIRM","url":"https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p"}]},"source":{"advisory":"GHSA-2hfj-cxw7-g45p","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/owncast/owncast/security/advisories/GHSA-2hfj-cxw7-g45p","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T01:58:18.143Z"}}]}}}