{"id":"CVE-2020-1023","state":"PUBLISHED","title":"Microsoft SharePoint Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.\nExploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.\nThe security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.","publishedAt":"2020-05-21T22:52:47.000Z","updatedAt":"2026-08-19T16:33:18.456Z","severity":null,"assigner":"microsoft","products":["Microsoft Microsoft SharePoint Enterprise Server 2016","Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1","Microsoft Microsoft SharePoint Server 2019"],"affected":[{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","versions":[{"version":"16.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Foundation 2013 Service Pack 1","versions":[{"version":"15.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","versions":[{"version":"16.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1023","https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1023"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:49.649Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/1xxx/CVE-2020-1023.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2020-1023","state":"PUBLISHED","datePublished":"2020-05-21T22:52:47.000Z","dateUpdated":"2026-08-19T16:33:18.456Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2019-11-04T00:00:00.000Z"},"containers":{"cna":{"title":"Microsoft SharePoint Remote Code Execution Vulnerability","descriptions":[{"lang":"en-US","value":"A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.\nExploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.\nThe security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages."}],"affected":[{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","versions":[{"version":"16.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Foundation 2013 Service Pack 1","versions":[{"version":"15.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","versions":[{"version":"16.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"platforms":["x64-based Systems"]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1023","name":"Microsoft SharePoint Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"]}],"problemTypes":[{"descriptions":[{"description":"Remote Code Execution","lang":"en-US","type":"Impact"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2026-08-19T16:33:18.456Z"},"datePublic":"2020-05-12T14:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"16.0.0","versionEndExcluding":"publication"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"16.0.0","versionEndExcluding":"publication"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_foundation_2013:*:sp1:*:*:*:*:*:*","versionStartIncluding":"15.0.0","versionEndExcluding":"publication"}]}]}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1023","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T06:25:00.837Z"}}]}}}