{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.6.7"
              },
              {
                "introduced": "3.7.0"
              },
              {
                "fixed": "3.7.5"
              },
              {
                "introduced": "3.8.0"
              },
              {
                "fixed": "3.8.2"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "584146b9b9b5d44359475f1b815b2306e130bbf2"
            },
            {
              "introduced": "8568afe5b4fb4d26b14fbc0d21f088eaa490b314"
            },
            {
              "fixed": "93e3981de93ce829fac9306ca8ede376b3c3fc14"
            },
            {
              "introduced": "30974533941e73f102505d07badf538cfdbbf3fc"
            },
            {
              "fixed": "dd1db760e378d2df7a52976e812f77f54f85c2c0"
            }
          ],
          "repo": "https://github.com/mattermost/mattermost",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.",
  "id": "CVE-2017-18914",
  "modified": "2026-07-08T05:37:29.717355781Z",
  "published": "2020-06-19T20:15:12.367Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://mattermost.com/security-updates/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}