WP-Matomo Integration (WP-Piwik) <= 1.0.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

{
  "id": "a14b21c7ba2d9a8bff401bf1a1799c385ceb68d4841532d53014ce1c8105a4a3",
  "url": "https://osv.dev/vulnerability/CVE-2023-4774",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "WP-Matomo Integration (WP-Piwik) <= 1.0.28 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode",
    "summary": "The WP-Matomo Integration (WP-Piwik) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wp-piwik' shortcode in versions up to, and including, 1.0.28 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.",
    "evidence": "osv:CVE-2023-4774",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-4774",
      "aliases": [
        "CVE-2023-4774"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/matomo-org/WP-Matomo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "f0b52fc86a4d5b0ff148da0fe10db2395644e148"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:braekling:connect_matomo:*:*:*:*:*:wordpress:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.0.28"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.28",
            "v1.0.27",
            "v1.0.26",
            "v1.0.25",
            "v1.0.21",
            "v1.0.20",
            "v1.0.18",
            "v1.0.16",
            "v1.0.13",
            "v1.0.9",
            "v1.0.8",
            "v1.0.6",
            "v1.0.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4774.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.185895267Z",
      "provider": "osv",
      "references": [
        "https://plugins.trac.wordpress.org/browser/wp-piwik/tags/1.0.28/classes/WP_Piwik/Widget/OptOut.php#L28",
        "https://plugins.trac.wordpress.org/changeset/2969705/wp-piwik#file164",
        "https://www.wordfence.com/threat-intel/vulnerabilities/id/faa4f041-4740-4ebb-afb3-10019ce571be?source=cve",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4774.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-4774"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "Wordfence",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "1.0.28"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4774.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-4774",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494949,
  "published_at": "2023-09-22T05:31:26.949+00:00"
}