Security advisory

{
  "id": "7b220bdd4e188efa4f7d722e671d5fbbd317a72d616b15d87770c47a81d09cea",
  "url": "https://osv.dev/vulnerability/CVE-2021-31745",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31745",
    "summary": "Session Fixation vulnerability in login.php in Pluck-CMS Pluck 4.7.15 allows an attacker to sustain unauthorized access to the platform. Because Pluck does not invalidate prior sessions after a password change, access can be sustained even after an administrator performs regular remediation attempts such as resetting their password.",
    "evidence": "osv:CVE-2021-31745",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-31745",
      "aliases": [
        "CVE-2021-31745"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pluck-cms/pluck",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2285080b37b4029074230635839d5b8b8f1dc8d5"
                },
                {
                  "last_affected": "2285080b37b4029074230635839d5b8b8f1dc8d5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pluck-cms:pluck:4.7.15:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.15-NA"
                      },
                      {
                        "last_affected": "4.7.15-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.7.15-NA",
            "4.7.15"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31745.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:40.596356715Z",
      "provider": "osv",
      "references": [
        "https://github.com/pluck-cms/pluck/issues/99"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-31745",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385866,
  "published_at": "2021-12-10T18:15:07.463+00:00"
}