Security advisory

{
  "id": "1ba283e81470d6c32ce9a933e473166cbb44a61929c30255240a4b8689c77dad",
  "url": "https://osv.dev/vulnerability/CVE-2017-18195",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-18195",
    "summary": "An issue was discovered in tools/conversations/view_ajax.php in Concrete5 before 8.3.0. An unauthenticated user can enumerate comments from all blog posts by POSTing requests to /index.php/tools/required/conversations/view_ajax with incremental 'cnvID' integers.",
    "evidence": "osv:CVE-2017-18195",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-18195",
      "aliases": [
        "CVE-2017-18195"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/concretecms/concretecms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "42e323aa14b5efdc3a75594bf02faec26ebb35cd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "8.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "42e323aa14b5efdc3a75594bf02faec26ebb35cd"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "8.3.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.2.1",
            "8.2.0",
            "8.2.0RC2",
            "8.1.0",
            "5.7.5.7",
            "5.7.5.6",
            "5.7.5.5",
            "5.7.5.2",
            "5.7.4.1",
            "5.7.3.1",
            "5.7.3",
            "5.7.2.1",
            "5.7.2",
            "5.7.0.4",
            "5.7.1",
            "5.7.0.3",
            "5.7.0.1",
            "5.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18195.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:47.991298830Z",
      "provider": "osv",
      "references": [
        "https://github.com/concrete5/concrete5/releases/tag/8.3.0",
        "https://github.com/concrete5/concrete5/pull/6008/files",
        "https://github.com/r3naissance/NSE/blob/master/http-vuln-cve2017-18195.nse",
        "https://www.exploit-db.com/exploits/44194/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-18195",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379730,
  "published_at": "2018-02-26T17:29:00.227+00:00"
}