{
  "id": "CVE-2018-15133",
  "url": "https://spydr.io/cve/CVE-2018-15133",
  "published": "2018-08-09T19:29:00.333Z",
  "modified": "2026-06-17T01:42:06.387Z",
  "score": 8.1,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.76814,
  "epss_percentile": 0.99537,
  "exploited": true,
  "kev": {
    "added": "2024-01-16",
    "due": "2024-02-06",
    "action": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Laravel Deserialization of Untrusted Data Vulnerability",
    "notes": "https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30; https://nvd.nist.gov/vuln/detail/CVE-2018-15133"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "laravel"
  ],
  "products": [
    "laravel"
  ],
  "cwes": [
    "CWE-502"
  ],
  "description": "In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in Illuminate/Encryption/Encrypter.php and PendingBroadcast in gadgetchains/Laravel/RCE/3/chain.php in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 8.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-15133",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15133",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}