Security advisory

{
  "id": "64aad2203bc337d1a114da78cfedadba065e9664df360c9fba6817e4d750e45e",
  "url": "https://osv.dev/vulnerability/CVE-2020-26153",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26153",
    "summary": "A cross-site scripting (XSS) vulnerability in wp-content/plugins/event-espresso-core-reg/admin_pages/messages/templates/ee_msg_admin_overview.template.php in the Event Espresso Core plugin before 4.10.7.p for WordPress allows remote attackers to inject arbitrary web script or HTML via the page parameter.",
    "evidence": "osv:CVE-2020-26153",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-26153",
      "aliases": [
        "CVE-2020-26153"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eventespresso/event-espresso-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e60a768c66aec63f818e56646cd968d37b9b8e1e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eventespresso:event_espresso:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.10.7.p"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.10.7.p",
            "4.10.6.p",
            "4.10.5.p",
            "4.10.4.p",
            "4.10.3.p",
            "4.10.2.p",
            "4.10.1.p",
            "4.10.0.p",
            "4.9.82.p",
            "4.9.81.p",
            "4.9.80.p",
            "4.9.79.p",
            "4.9.78.p",
            "4.9.77.p",
            "4.9.76.p",
            "4.9.75.p",
            "4.9.74.p",
            "4.9.73.p",
            "4.9.72.p",
            "4.9.71.p",
            "4.9.70.p",
            "4.9.69.p",
            "4.9.67.p",
            "4.9.66.p",
            "4.9.65.p",
            "4.9.64.p",
            "4.9.63.p",
            "4.9.9.p",
            "4.8.30.p",
            "4.8.20.p",
            "4.8.19.p",
            "4.8.18.p",
            "4.6.25.p",
            "4.4.4.p",
            "4.4.3.p",
            "4.4.2.p",
            "4.4.1.p",
            "4.4.0.p",
            "4.3.1.p",
            "4.2.9.p",
            "4.2.8.p",
            "4.2.5.p",
            "4.2.4.reg",
            "4.2.3.reg",
            "4.2.2.reg",
            "4.2.1.reg",
            "4.2.0.reg"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26153.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:54.385992463Z",
      "provider": "osv",
      "references": [
        "https://github.com/eventespresso/event-espresso-core/compare/4.10.6.p...4.10.7.p",
        "https://labs.nettitude.com/blog/cve-2020-26153-event-espresso-core-cross-site-scripting/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-26153",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379820,
  "published_at": "2021-07-13T11:15:08.843+00:00"
}