Security advisory

{
  "id": "e0017d9b0db27e7d047c392c6b2d341b78e189ff91e3ca4276a7d8263f361931",
  "url": "https://osv.dev/vulnerability/CVE-2021-23125",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23125",
    "summary": "An issue was discovered in Joomla! 3.1.0 through 3.9.23. The lack of escaping of image-related parameters in multiple com_tags views cause lead to XSS attack vectors.",
    "evidence": "osv:CVE-2021-23125",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-23125",
      "aliases": [
        "BIT-joomla-2021-23125",
        "CVE-2021-23125"
      ],
      "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/joomla/joomla-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b7c37b477b0231cfdbf1251f25a9096a173d3f58"
                },
                {
                  "last_affected": "435d780d9a87504267256033c5f6fb984f713ff9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.1.0"
                      },
                      {
                        "last_affected": "3.9.23"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23125.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:19.065241102Z",
      "provider": "osv",
      "references": [
        "https://developer.joomla.org/security-centre/838-20210103-core-xss-in-com-tags-image-parameters.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-23125",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429928,
  "published_at": "2021-01-12T21:15:18.997+00:00"
}