{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.4.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "189869c4a8f0f897848cdb58493b572178084d6c"
            }
          ],
          "repo": "https://github.com/vrana/adminer",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-33j4-hc95-pggg"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-330"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56706.json"
  },
  "details": "Adminer before 5.4.3 uses a CSRF token scheme that transmits both the XOR mask and the masked value in every token (format (rand XOR secret):rand), allowing anyone who observes a single CSRF token (e.g., via network sniffing, log files, Referrer header, or XSS) to recover the session secret with a single XOR operation and forge unlimited valid tokens. The implementation is further weakened by a low-entropy session token (rand(1,1e6), ~20 bits) that permits blind brute-force, and by use of loose comparison (==) in token verification, enabling PHP type juggling. Exploitation enables cross-site request forgery against authenticated sessions, including execution of arbitrary SQL queries.",
  "id": "CVE-2026-56706",
  "modified": "2026-09-10T03:30:46.819635449Z",
  "published": "2026-08-25T01:30:05.474Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56706.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/vrana/adminer/security/advisories/GHSA-33j4-hc95-pggg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56706"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/adminer-before-csrf-token-secret-recovery-via-xor-masking"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Adminer before 5.4.3 CSRF Token Secret Recovery via XOR Masking"
}