Security advisory

{
  "id": "ae320f1466a2731dbc250c831efbb7780dd8db4838bec9fdb79271f8bdedda6f",
  "url": "https://osv.dev/vulnerability/CVE-2018-19274",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19274",
    "summary": "Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code Execution through Object Injection by employing Phar deserialization when an attacker has access to the Admin Control Panel with founder permissions.",
    "evidence": "osv:CVE-2018-19274",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-19274",
      "aliases": [
        "CVE-2018-19274",
        "GHSA-h3mr-q96r-37v4"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phpbb/phpbb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "023ec01611123c426a5aeaf812e50fb1ade43c0e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.2.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "release-3.2.4-RC1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19274.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:16.569806044Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2018/11/msg00029.html",
        "https://www.phpbb.com/community/viewtopic.php?f=14&t=2492206",
        "https://blog.ripstech.com/2018/phpbb3-phar-deserialization-to-remote-code-execution/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-19274",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429373,
  "published_at": "2018-11-17T13:29:00.24+00:00"
}