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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2026-73337

Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - Insufficient state checks lead to a vector that allows to bypass 2FA checks.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-73337
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:34 UTC · Revision 1

Source evidence

CVE-2026-73337

core-osv · Original source

Published 18 Aug 2026, 16:18 UTC

Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - Insufficient state checks lead to a vector that allows to bypass 2FA checks.

osv:CVE-2026-73337
Complete source record
{
  "id": "3d32fd2aba64a646f94b59a8021ed86115195b8be325e6609e3c08a00d0e749d",
  "url": "https://osv.dev/vulnerability/CVE-2026-73337",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-73337",
    "summary": "Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - Insufficient state checks lead to a vector that allows to bypass 2FA checks.",
    "evidence": "osv:CVE-2026-73337",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-73337",
      "aliases": [
        "BIT-joomla-2026-73337",
        "CVE-2026-73337"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/joomla/joomla-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5f20de27b9640124ba185670a36ec40ebc9ec3f9"
                },
                {
                  "fixed": "e08f97c45440266d7b51bcf1c0739e8f135bab0b"
                },
                {
                  "introduced": "0db7d502466ae41242ad761424f76378458fb819"
                },
                {
                  "fixed": "0f2d4de4729eb951e0878fec98c7990da07915b2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "5.4.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.0.0"
                      },
                      {
                        "fixed": "6.1.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73337.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.123122962Z",
      "provider": "osv",
      "references": [
        "https://www.joomla.org/",
        "https://developer.joomla.org/security-centre/1074-20260807-core-mfa-authentication-bypass.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-73337",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430193,
  "published_at": "2026-08-18T16:18:16.893+00:00"
}