{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.1.7"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "28d6f641c16e3015d51d0a01d14841b845251f35"
            }
          ],
          "repo": "https://github.com/thorsten/phpmyfaq",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f534-wv9g-wx2w"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-294"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76214.json"
  },
  "details": "phpMyFAQ before 4.1.7 fails to persist the WebAuthn login challenge generated by prepareForLogin, because neither WebAuthn controller saves the mutated key objects back to the database. At login the anti-replay comparison is skipped by its own null guard, allowing an attacker who captures a successful WebAuthn assertion to replay it indefinitely and authenticate as the user without any interaction or hardware key.",
  "id": "CVE-2026-76214",
  "modified": "2026-08-23T03:42:23.735936377Z",
  "published": "2026-08-19T14:01:59.917Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76214.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f534-wv9g-wx2w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76214"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/phpmyfaq-before-webauthn-replay-attack-via-challenge"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "phpMyFAQ before 4.1.7 WebAuthn Replay Attack via Challenge"
}