Security advisory

{
  "id": "aa0acd9841e60946c623568bb04b30e5ea8da3a6837321797268b46ff3240a72",
  "url": "https://osv.dev/vulnerability/CVE-2018-20000",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20000",
    "summary": "Apereo Bedework bw-webdav before 4.0.3 allows XXE attacks, as demonstrated by an invite-reply document that reads a local file, related to webdav/servlet/common/MethodBase.java and webdav/servlet/common/PostRequestPars.java.",
    "evidence": "osv:CVE-2018-20000",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-20000",
      "aliases": [
        "CVE-2018-20000",
        "GHSA-5p52-j8pw-j7x5"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bedework/bw-webdav",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "72daff7601766346a29f8f5183e226b4996ee897"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apereo:bw-webdav:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "bw-webdav-4.0.2",
            "bw-webdav-4.0.1",
            "bw-webdav-4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20000.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:06.251301347Z",
      "provider": "osv",
      "references": [
        "https://github.com/Bedework/bw-webdav/compare/bw-webdav-4.0.2...bw-webdav-4.0.3",
        "https://github.com/Bedework/bw-webdav/pull/1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-20000",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381277,
  "published_at": "2018-12-10T02:29:00.233+00:00"
}