{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0377b2152c0e59c8f35297f9a9b6ee335a62d963"
            }
          ],
          "repo": "https://github.com/fusionpbx/fusionpbx",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "unresolved_ranges": [
      {
        "cpes": [
          "cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*"
        ],
        "extracted_events": [
          {
            "fixed": "4.5.30"
          }
        ],
        "source": "CPE_RANGE",
        "vendor_product": "fusionpbx:fusionpbx"
      },
      {
        "extracted_events": [
          {
            "fixed": "4.5.30"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "An issue was discovered in FusionPBX before 4.5.30. The fax_post_size may have risky characters (it is not constrained to preset values).",
  "id": "CVE-2021-43406",
  "modified": "2026-07-08T05:38:23.850691963Z",
  "published": "2021-11-05T18:15:09.600Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/fusionpbx/fusionpbx/commit/0377b2152c0e59c8f35297f9a9b6ee335a62d963"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}