Security advisory

{
  "id": "dab4cca9bcebe8483d74b6580b1debbf9a26030d04a6b30b7109bbc29e9a921c",
  "url": "https://osv.dev/vulnerability/CVE-2020-26693",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26693",
    "summary": "A stored cross-site scripting (XSS) vulnerability was discovered in pfSense 2.4.5-p1 which allows an authenticated attacker to execute arbitrary web scripts via exploitation of the load_balancer_monitor.php function.",
    "evidence": "osv:CVE-2020-26693",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-26693",
      "aliases": [
        "CVE-2020-26693"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pfsense/pfsense",
              "type": "GIT",
              "events": [
                {
                  "introduced": "dba74e12841dbc7e92620225b7187c6e19540e87"
                },
                {
                  "last_affected": "dba74e12841dbc7e92620225b7187c6e19540e87"
                },
                {
                  "fixed": "a220a22a8c05c10a7b875ac6b565f2c4fe7b251c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pfsense:pfsense:2.4.5:p1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.5-p1"
                      },
                      {
                        "last_affected": "2.4.5-p1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a220a22a8c05c10a7b875ac6b565f2c4fe7b251c"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.5-p1",
            "v2.4.5_1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26693.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:58.151955049Z",
      "provider": "osv",
      "references": [
        "https://github.com/pfsense/pfsense/commit/a220a22a8c05c10a7b875ac6b565f2c4fe7b251c"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-26693",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384102,
  "published_at": "2021-06-01T15:15:07.553+00:00"
}