Security advisory

{
  "id": "44c519ebb82b1686438c739152fd21bc21ebfa1e3ce34d1a962f210c140dc21e",
  "url": "https://osv.dev/vulnerability/CVE-2021-36833",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-36833",
    "summary": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress.",
    "evidence": "osv:CVE-2021-36833",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-36833",
      "aliases": [
        "CVE-2021-36833"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ibericode/mailchimp-for-wordpress",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "c1aadef51927aa0047e7211cfc8fb09d07423a0c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ibericode:mailchimp_for_wordpress:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.8.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.8.6",
            "4.8.5",
            "4.8.4",
            "4.8.3",
            "4.8.2",
            "4.8.1",
            "4.8",
            "4.7.8",
            "4.7.7",
            "4.7.6",
            "4.7.5",
            "4.7.4",
            "4.7.3",
            "4.7.1",
            "4.7",
            "4.6.2",
            "4.6.0",
            "4.5.5",
            "4.5.4",
            "4.5.3",
            "4.5.2",
            "4.5.1",
            "4.5.0",
            "4.4",
            "4.3.3",
            "4.3",
            "4.2.5",
            "4.1.14",
            "4.1.13",
            "4.1.12",
            "4.1.10",
            "4.1.9",
            "4.1.7",
            "4.1.6",
            "4.1.4",
            "4.1.3",
            "4.1.2",
            "4.1.1",
            "4.1.0",
            "4.0.13",
            "4.0.12",
            "4.0.11",
            "4.0.10",
            "4.0.9",
            "4.0.7",
            "4.0.6",
            "4.0.5",
            "4.0.4",
            "4.0.3",
            "4.0.2",
            "4.0.1",
            "4.0",
            "3.1.3",
            "3.1.2",
            "3.1.1",
            "3.1",
            "3.0.12",
            "3.0.11",
            "3.0.10",
            "3.0.9",
            "3.0.8",
            "3.0.7",
            "3.0.6",
            "3.0.4",
            "3.0.3",
            "3.0.2",
            "2.3.18",
            "2.3.17",
            "2.3.16",
            "2.3.15",
            "2.3.14",
            "2.3.13",
            "2.3.12",
            "2.3.11",
            "2.3.10",
            "2.3.9",
            "2.3.8",
            "2.3.7",
            "2.3.6",
            "2.3.5",
            "2.3.4",
            "2.3.3",
            "2.3.2",
            "2.3.1",
            "2.3",
            "2.2.9",
            "2.2.8",
            "2.2.7",
            "2.2.6",
            "2.2.5",
            "2.2.4",
            "2.2.3",
            "2.2.2",
            "2.2.1",
            "2.2",
            "2.1.7",
            "2.1.6",
            "2.1.4",
            "2.1.2",
            "2.1.1",
            "2.1",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36833.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:45.839175875Z",
      "provider": "osv",
      "references": [
        "https://wordpress.org/plugins/mailchimp-for-wp/#developers",
        "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-36833",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436211,
  "published_at": "2022-05-20T20:15:09.747+00:00"
}