{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "last_affected": "4.0.0"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "9bdf6d7b816d4e55501e13d12dc0d9b53cf16f5c"
            },
            {
              "last_affected": "1200cd9d40abad6ee9bebf784f4b64e345302b14"
            }
          ],
          "repo": "https://github.com/zammad/zammad",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "Text injection/Content Spoofing in 404 page in Zammad 1.0.x up to 4.0.0 could allow remote attackers to manipulate users into visiting the attackers' page.",
  "id": "CVE-2021-35300",
  "modified": "2026-07-08T05:36:17.803050791Z",
  "published": "2021-06-28T20:15:08.060Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://zammad.com/en/advisories/zaa-2021-07"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}