Security advisory

{
  "id": "80d28552279ee434f54216d1f5f5e5fb6872ce57fba4407d4688ed35e09c3e36",
  "url": "https://osv.dev/vulnerability/CVE-2021-39500",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39500",
    "summary": "Eyoucms 1.5.4 is vulnerable to Directory Traversal. Due to a lack of input data sanitizaton in param tpldir, filename, type, nid an attacker can inject \"../\" to escape and write file to writeable directories.",
    "evidence": "osv:CVE-2021-39500",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-39500",
      "aliases": [
        "CVE-2021-39500"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/weng-xianhu/eyoucms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8e304703c698d8e565dd71d6b7337c36182fe9db"
                },
                {
                  "last_affected": "8e304703c698d8e565dd71d6b7337c36182fe9db"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eyoucms:eyoucms:1.5.4:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.5.4"
                      },
                      {
                        "last_affected": "1.5.4"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.5.4",
            "v1.5.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39500.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.144386333Z",
      "provider": "osv",
      "references": [
        "https://github.com/KietNA-HPT/CVE",
        "https://github.com/eyoucms/eyoucms/releases/tag/v1.5.4"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39500",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430201,
  "published_at": "2021-09-07T21:15:08.887+00:00"
}