{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.2.0"
              },
              {
                "fixed": "4.0.0"
              },
              {
                "introduced": "4.0.2"
              },
              {
                "fixed": "4.2.0-beta"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "860c494b287d217c4b9b74856834ab5050cc8a39"
            },
            {
              "fixed": "9bf3d792e67da3c04217002a9642fdf74ced9554"
            },
            {
              "introduced": "be08db5cd80763e3466e17b8e616d662ae3c1054"
            },
            {
              "fixed": "e137c1e017b15ffa01181a2380b81e1aea5ae1ad"
            }
          ],
          "repo": "https://github.com/thorsten/phpmyfaq",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6hhv-gc4g-f4r7"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111895.json"
  },
  "details": "phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta contains an authentication bypass in its Microsoft Entra ID login flow, which links users by the mutable preferred_username claim and whose AuthEntraId::create() ignores the duplicate-login exception while continuing with the existing local account. Attackers controlling an Entra identity in the configured tenant with a matching preferred_username can take over that local account, including super-admin accounts.",
  "id": "CVE-2026-111895",
  "modified": "2026-10-20T02:30:43.686947710Z",
  "published": "2026-10-17T18:46:18.581Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111895.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-6hhv-gc4g-f4r7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111895"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/phpmyfaq-3.2.0-before-4.0.0-and-4.0.2-before-4.2.0-beta-account-takeover-via-entra-id-preferred-username"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta Account Takeover via Entra ID preferred_username"
}