{"cve":{"cve_id":"CVE-2020-1024","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.03718,"epss_percentile":0.88956,"epss_as_of":"2026-08-26","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.","published_at":"2020-05-21T22:52:47Z","last_modified_at":"2026-08-19T17:17:08.750000Z","cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-434"],"nvd_references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1024"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-08-21T22:43:57.679322Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-enterprise-server","product_name":"Microsoft SharePoint Enterprise Server","version_start":"2016","version_start_inclusive":true,"version_end":"2016","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-enterprise-server:2016:2016"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-enterprise-server-2016","product_name":"Microsoft SharePoint Enterprise Server 2016","version_start":"16.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-enterprise-server-2016:16.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-foundation","product_name":"Microsoft SharePoint Foundation","version_start":"2013 Service Pack 1","version_start_inclusive":true,"version_end":"2013 Service Pack 1","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-foundation:2013 Service Pack 1:2013 Service Pack 1"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-foundation-2013-service-pack-1","product_name":"Microsoft SharePoint Foundation 2013 Service Pack 1","version_start":"15.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-foundation-2013-service-pack-1:15.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-server","product_name":"Microsoft SharePoint Server","version_start":"2019","version_start_inclusive":true,"version_end":"2019","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-server:2019:2019"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"microsoft-sharepoint-server-2019","product_name":"Microsoft SharePoint Server 2019","version_start":"16.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:microsoft-sharepoint-server-2019:16.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"sharepoint-enterprise-server","product_name":"sharepoint_enterprise_server","version_start":"2016","version_start_inclusive":true,"version_end":"2016","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"sharepoint-foundation","product_name":"sharepoint_foundation","version_start":"2013","version_start_inclusive":true,"version_end":"2013","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"sharepoint-server","product_name":"sharepoint_server","version_start":"2019","version_start_inclusive":true,"version_end":"2019","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1024","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2020-05-21T22:52:47Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-08-21T16:41:57.622664Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-08-21T16:41:57.622664Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-08-21T16:41:57.622664Z","label":"CVSS score revised","source":"nvd"}]}