Security advisory

{
  "id": "83b5dbded9e0ace12648d41bbc181d4487a28f96401d5b30ac6734885ff5bc2a",
  "url": "https://osv.dev/vulnerability/CVE-2018-18315",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18315",
    "summary": "com/mossle/cdn/CdnController.java in lemon 1.9.0 allows attackers to upload arbitrary files because the copyMultipartFileToFile method in CdnUtils only checks for a ../ substring, and does not validate the file type and spaceName parameter.",
    "evidence": "osv:CVE-2018-18315",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-18315",
      "aliases": [
        "CVE-2018-18315"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/xuhuisheng/lemon",
              "type": "GIT",
              "events": [
                {
                  "introduced": "28e13a2d7434aedcf12a61a591a59365e17eb3b2"
                },
                {
                  "last_affected": "28e13a2d7434aedcf12a61a591a59365e17eb3b2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mossle:lemon:1.9.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.9.0"
                      },
                      {
                        "last_affected": "1.9.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.9.0",
            "lemon-1.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18315.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:34.607277009Z",
      "provider": "osv",
      "references": [
        "https://github.com/xuhuisheng/lemon/issues/175"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-18315",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382588,
  "published_at": "2018-10-15T04:29:01.047+00:00"
}