{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.4"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "81bad8b6649253bd972ac4158816189d38366216"
            }
          ],
          "repo": "https://github.com/monstra-cms/monstra",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Monstra CMS through 3.0.4 allows remote authenticated users to take over arbitrary user accounts via a modified login parameter to an edit URI, as demonstrated by login=victim to the users/21/edit URI.",
  "id": "CVE-2020-8439",
  "modified": "2026-03-13T21:50:01.337712243Z",
  "published": "2020-03-07T01:15:15.457Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://cert.ikiu.ac.ir/public-files/pages/attachments/11/02630f153869936d555a79f89d717f9c.pdf"
    },
    {
      "type": "EVIDENCE",
      "url": "http://uploadboy.me/cn40ne6p89t6/POC.mp4.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}