{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.7"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "14247ee4302378d292863865c643abe99bbfe3c7"
            },
            {
              "fixed": "cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4"
            }
          ],
          "repo": "https://github.com/wordpress/wordpress",
          "type": "GIT"
        }
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.7"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "efa83f48bd4ebd066e5efc94b9feefe50e7925a2"
            }
          ],
          "repo": "https://github.com/wordpress/wordpress-develop",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "wp-includes/ms-functions.php in the Multisite WordPress API in WordPress before 4.7.1 does not properly choose random numbers for keys, which makes it easier for remote attackers to bypass intended access restrictions via a crafted (1) site signup or (2) user signup.",
  "id": "CVE-2017-5493",
  "modified": "2026-07-08T05:36:33.705260510Z",
  "published": "2017-01-15T02:59:03.077Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/95401"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037591"
    },
    {
      "type": "WEB",
      "url": "https://wpvulndb.com/vulnerabilities/8721"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.debian.org/security/2017/dsa-3779"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.openwall.com/lists/oss-security/2017/01/14/6"
    },
    {
      "type": "ADVISORY",
      "url": "https://codex.wordpress.org/Version_4.7.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/"
    },
    {
      "type": "FIX",
      "url": "https://github.com/WordPress/WordPress/commit/cea9e2dc62abf777e06b12ec4ad9d1aaa49b29f4"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}