{"id":"CVE-2021-28976","aliases":["EUVD-2021-15623","GHSA-g2wx-83fr-2mf4"],"status":"published","title":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar...","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.07548,"percentile":0.94595,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-434"],"published":"2021-06-23T12:36:08Z","modified":"2026-10-20T10:53:42Z","exploits":[{"source":"exploitdb","id":"EDB-52168","title":"GetSimpleCMS 3.3.16 - Remote Code Execution (RCE)","type":"webapps","platform":"php","date":"2025-04-11","url":"https://www.exploit-db.com/exploits/52168"}],"products":[{"vendor":"get-simple","product":"getsimplecms"}],"references":[{"url":"https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28976"},{"url":"https://github.com/advisories/GHSA-g2wx-83fr-2mf4"}],"sources":{"cve":[{"id":"CVE-2021-28976","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","status":"published","published":"2021-06-23T12:36:08Z","modified":"2024-08-03T21:55:12.379Z","updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15623","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","status":"published","published":"2021-06-23T12:36:08Z","modified":"2024-08-03T21:55:12Z","updated_at":"2026-11-03T03:24:45.541615Z"}],"ghsa":[{"id":"GHSA-g2wx-83fr-2mf4","title":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar...","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","status":"published","published":"2022-05-24T19:06:02Z","modified":"2023-01-29T05:07:05Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:46:09.170985Z"}],"nvd":[{"id":"CVE-2021-28976","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","status":"published","published":"2021-06-23T13:15:08.14Z","modified":"2026-06-17T03:47:07.153Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:54.892562Z"}],"osv":[{"id":"CVE-2021-28976","description":"Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.","status":"published","published":"2021-06-23T13:15:08.14Z","modified":"2026-10-20T10:53:42.318343162Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"}]}}