{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.3.0"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "5.3.0-rc1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c2d61b8bf32a5920d266432726af9032e8b33acb"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "e915c7be7cf86c6266e5f6fe06892cf8443e3081"
            }
          ],
          "repo": "https://github.com/revive-adserver/revive-adserver",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Vulnerability in the generation of session IDs in revive-adserver \u003c 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.",
  "id": "CVE-2021-22948",
  "modified": "2026-03-13T21:48:03.186886753Z",
  "published": "2021-09-23T13:15:08.760Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://www.revive-adserver.com/security/revive-sa-2021-005/"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackerone.com/reports/1187820"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}