Security advisory

{
  "id": "03cc3f58825357b83f3bd4b336e9759dc594ebea352e833177ef81eed44a4110",
  "url": "https://osv.dev/vulnerability/CVE-2021-26040",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-26040",
    "summary": "An issue was discovered in Joomla! 4.0.0. The media manager does not correctly check the user's permissions before executing a file deletion command.",
    "evidence": "osv:CVE-2021-26040",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-26040",
      "aliases": [
        "BIT-joomla-2021-26040",
        "CVE-2021-26040"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/joomla/joomla-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5f20de27b9640124ba185670a36ec40ebc9ec3f9"
                },
                {
                  "last_affected": "5f20de27b9640124ba185670a36ec40ebc9ec3f9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:4.0.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0-NA"
                      },
                      {
                        "last_affected": "4.0.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0.0-NA",
            "4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26040.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:24.476536030Z",
      "provider": "osv",
      "references": [
        "https://developer.joomla.org/security-centre/861-20210801-core-insufficient-access-control-for-com-media-deletion-endpoint"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-26040",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431157,
  "published_at": "2021-08-24T15:15:06.91+00:00"
}