{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "4.0.0"
              },
              {
                "fixed": "5.4.8"
              },
              {
                "introduced": "6.0.0"
              },
              {
                "fixed": "6.1.3"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "5f20de27b9640124ba185670a36ec40ebc9ec3f9"
            },
            {
              "fixed": "e08f97c45440266d7b51bcf1c0739e8f135bab0b"
            },
            {
              "introduced": "0db7d502466ae41242ad761424f76378458fb819"
            },
            {
              "fixed": "0f2d4de4729eb951e0878fec98c7990da07915b2"
            }
          ],
          "repo": "https://github.com/joomla/joomla-cms",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 -An improper validation of the cache group name allowed path traverals in the file storage of the caching layer, resulting in arbitrary directory deletions.",
  "id": "CVE-2026-90915",
  "modified": "2026-10-08T02:30:36.198898954Z",
  "published": "2026-09-29T17:17:13.520Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.joomla.org/"
    },
    {
      "type": "FIX",
      "url": "https://developer.joomla.org/security-centre/1085-20260905-core-arbitrary-directory-deletion-via-cache-purge-action.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}