Joomla! Core - [20260511] - MFA Authentication Bypass

Insufficient state checks lead to a vector that allows to bypass 2FA checks.

Problem type

CWE-287 Improper Authentication

Affected products

Joomla! Project

Joomla! CMS

4.0.0-5.4.5 - AFFECTED

6.0.0-6.1.0 - AFFECTED

References

developer.joomla.org

https://developer.joomla.org/security-centre/1043-20260511-core-mfa-authentication-bypass.html

vendor-advisory

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-48896

Click to expand

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-48896",
    "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
    "assignerShortName": "Joomla",
    "dateUpdated": "2026-05-26T16:45:55.573Z",
    "dateReserved": "2026-05-26T10:06:17.656Z",
    "datePublished": "2026-05-26T16:45:55.573Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
        "shortName": "Joomla",
        "dateUpdated": "2026-05-26T16:45:55.573Z"
      },
      "title": "Joomla! Core - [20260511] - MFA Authentication Bypass",
      "descriptions": [
        {
          "lang": "en",
          "value": "Insufficient state checks lead to a vector that allows to bypass 2FA checks.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "Insufficient state checks lead to a vector that allows to bypass 2FA checks."
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Joomla! Project",
          "product": "Joomla! CMS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.0.0-5.4.5",
              "status": "affected"
            },
            {
              "version": "6.0.0-6.1.0",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-287 Improper Authentication",
              "cweId": "CWE-287",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://developer.joomla.org/security-centre/1043-20260511-core-mfa-authentication-bypass.html",
          "tags": [
            "vendor-advisory"
          ]
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115: Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
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            {
              "lang": "en",
              "value": "GENERAL"
            }
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      "credits": [
        {
          "lang": "en",
          "value": "Doyensec in collaboration with Claude and Anthropic Research",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Christos Papakonstantinou, Cantina",
          "type": "finder"
        }
      ]
    }
  }
}