{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:get-simple:getsimplecms:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.3.15"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a26202bee203910780f5a96b3bc1f52a8f23d0a1"
            }
          ],
          "repo": "https://github.com/getsimplecms/getsimplecms",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.",
  "id": "CVE-2021-28976",
  "modified": "2026-07-08T05:39:00.914905873Z",
  "published": "2021-06-23T13:15:08.140Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}