WordPress Easy Forms for Mailchimp Plugin <= 6.8.8 is vulnerable to Cross Site Scripting (XSS)

{
  "id": "a50cc5b87a83938794551da31e7cbed00ca65eb350301a405bf69712d421f4ef",
  "url": "https://osv.dev/vulnerability/CVE-2023-23900",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "WordPress Easy Forms for Mailchimp Plugin <= 6.8.8 is vulnerable to Cross Site Scripting (XSS)",
    "summary": "Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in YIKES, Inc. Easy Forms for Mailchimp plugin <= 6.8.8 versions.",
    "evidence": "osv:CVE-2023-23900",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-23900",
      "aliases": [
        "CVE-2023-23900"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "74c80304dcc7af2e00e6df0df68536cd5635f280"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:yikesinc:easy_forms_for_mailchimp:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.8.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "6.8.8",
            "v6.8.7",
            "6.8.6",
            "6.8.5",
            "6.8.4",
            "6.8.3",
            "6.8.2",
            "6.8.1",
            "6.8.0",
            "v6.7.0",
            "6.7.0",
            "6.6.4",
            "6.6.2",
            "6.6.1",
            "6.6.0",
            "v.6.2.3",
            "v.6.2.2",
            "v6.2.1",
            "v6.2.0",
            "v6.0.1",
            "6.0.0-rc1.0",
            "4.2.1",
            "4.2",
            "4.1",
            "v4.0",
            "4.0",
            "3.0.1",
            "3.0",
            "2.2.0",
            "2.1.1",
            "2.1.0",
            "2.0.3",
            "2.0.2",
            "2.0.1",
            "2.0.0",
            "1.3.1",
            "1.3.0",
            "1.2.0",
            "1.1.0",
            "1.0.1",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23900.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.158295225Z",
      "provider": "osv",
      "references": [
        "https://wordpress.org/plugins",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23900.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-23900",
        "https://patchstack.com/database/vulnerability/yikes-inc-easy-mailchimp-extender/wordpress-easy-forms-for-mailchimp-plugin-6-8-8-cross-site-scripting-xss-vulnerability?_s_id=cve"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "Patchstack",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "6.8.9"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "ChangesAt"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23900.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-23900",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520985,
  "published_at": "2023-08-10T11:30:36.912+00:00"
}