{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.0.0"
                  },
                  {
                    "fixed": "5.0.16"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "59b4888d2be8acb9801f3024258663f7a787518c"
            },
            {
              "fixed": "9de058fd429c8c66c2f0deac878d0369d07cf13c"
            }
          ],
          "repo": "https://github.com/admidio/admidio",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8256-4wm7-f628"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111912.json"
  },
  "details": "Admidio from 5.0.0 before 5.0.16 contains an insecure direct object reference vulnerability in ForumService::saveTopic() that allows authenticated members to modify other users' forum topics. Attackers can replace the topic_uuid parameter in their own topic_save request, reusing their CSRF token, to overwrite the victim topic's title and first post.",
  "id": "CVE-2026-111912",
  "modified": "2026-10-21T02:31:03.604620898Z",
  "published": "2026-10-17T18:46:29.658Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-8256-4wm7-f628"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111912.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111912"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/admidio-5.0.0-before-5.0.16-idor-via-forum-topic-update"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Admidio 5.0.0 before 5.0.16 IDOR via Forum Topic Update"
}