{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:lucee:lucee_server:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "5.3.7.00"
              },
              {
                "fixed": "5.3.7.47"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d6c3bfb7de0b35e1ff1a0ed680d6041420ccb0d8"
            },
            {
              "fixed": "6208ab7c44c61d26c79e0b0af10382899f57e1ca"
            }
          ],
          "repo": "https://github.com/lucee/lucee",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2xvv-723c-8p7r"
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:a:lucee:lucee_server:*:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "introduced": "5.3.5.00"
          },
          {
            "fixed": "5.3.5.96"
          },
          {
            "introduced": "5.3.6.00"
          },
          {
            "fixed": "5.3.6.68"
          }
        ],
        "source": "CPE_RANGE",
        "vendor_product": "lucee:lucee_server"
      }
    ]
  },
  "details": "Lucee Server is a dynamic, Java based (JSR-223), tag and scripting language used for rapid web application development. In Lucee Admin before versions 5.3.7.47, 5.3.6.68 or 5.3.5.96 there is an unauthenticated remote code exploit. This is fixed in versions 5.3.7.47, 5.3.6.68 or 5.3.5.96. As a workaround, one can block access to the Lucee Administrator.",
  "id": "CVE-2021-21307",
  "modified": "2026-07-08T05:36:48.967945498Z",
  "published": "2021-02-11T19:15:13.313Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://dev.lucee.org/t/lucee-vulnerability-alert-november-2020/7643"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/lucee/Lucee/security/advisories/GHSA-2xvv-723c-8p7r"
    },
    {
      "type": "ADVISORY",
      "url": "https://portswigger.net/daily-swig/security-researchers-earn-50k-after-exposing-critical-flaw-in-apple-travel-portal"
    },
    {
      "type": "FIX",
      "url": "http://ciacfug.org/blog/updating-lucee-as-part-of-a-vulnerability-alert-response"
    },
    {
      "type": "FIX",
      "url": "https://github.com/lucee/Lucee/commit/6208ab7c44c61d26c79e0b0af10382899f57e1ca"
    },
    {
      "type": "EVIDENCE",
      "url": "http://packetstormsecurity.com/files/163864/Lucee-Administrator-imgProcess.cfm-Arbitrary-File-Write.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/httpvoid/writeups/blob/main/Apple-RCE.md"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}