{"api_version":"1","generated_at":"2026-05-29T23:56:02+00:00","cve":"CVE-2021-28976","urls":{"html":"https://cve.report/CVE-2021-28976","api":"https://cve.report/api/cve/CVE-2021-28976.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-28976","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28976"},"summary":{"title":"CVE-2021-28976","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-06-23 13:15:00","updated_at":"2021-06-28 19:55:00"},"problem_types":["CWE-434"],"metrics":[],"references":[{"url":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335","name":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335","refsource":"MISC","tags":[],"title":"Before GetSimpleCMS 3.3.16 version upload.php allowed to upload executable files lead to RCE · Issue #1335 · GetSimpleCMS/GetSimpleCMS · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28976","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28976","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"28976","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"get-simple","cpe5":"getsimplecms","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-28976","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335","refsource":"MISC","name":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335"}]}},"nvd":{"publishedDate":"2021-06-23 13:15:00","lastModifiedDate":"2021-06-28 19:55:00","problem_types":["CWE-434"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH"},"exploitabilityScore":1.2,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.5},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:get-simple:getsimplecms:*:*:*:*:*:*:*:*","versionEndExcluding":"3.3.15","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"28976","Ordinal":"204160","Title":"CVE-2021-28976","CVE":"CVE-2021-28976","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"28976","Ordinal":"1","NoteData":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"28976","Ordinal":"2","NoteData":"2021-06-23","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"28976","Ordinal":"3","NoteData":"2021-06-23","Type":"Other","Title":"Modified"}]}}}