Vulnerability-Lookup

GHSA-29R8-GVX4-R9W3

Vulnerability from github – Published: 2026-03-17 09:31 – Updated: 2026-04-27 16:45

Summary

Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)

Details

The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.7 (High)


                  
                    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "ralffreit/mfa-email"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "ralffreit/mfa-email"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-4208"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-18T16:17:23Z",
    "nvd_published_at": "2026-03-17T09:16:14Z",
    "severity": "HIGH"
  },
  "details": "The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.",
  "id": "GHSA-29r8-gvx4-r9w3",
  "modified": "2026-04-27T16:45:42Z",
  "published": "2026-03-17T09:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4208"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MrSilaz/mfa_email/commit/0bb7e85b236a5232f7b092915453dd7c3da48f12"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MrSilaz/mfa_email"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MrSilaz/mfa_email/releases/tag/v1.0.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MrSilaz/mfa_email/releases/tag/v2.0.1"
    },
    {
      "type": "WEB",
      "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-007"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Authentication Bypass in extension \"E-Mail MFA Provider\" (mfa_email)"
}

CVE-2026-4208 (GCVE-0-2026-4208)

Vulnerability from cvelistv5 – Published: 2026-03-17 08:34 – Updated: 2026-03-24 17:20

Title

Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)

Summary

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-639

Assigner

TYPO3

References

1 reference

URL	Tags
https://typo3.org/security/advisory/typo3-ext-sa-…

Impacted products

1 product

Vendor	Product	Version
TYPO3	Extension "E-Mail MFA Provider"	Affected: 0 , ≤ 1.0.5 (semver) Affected: 2.0.0 (semver)

Date Public

2026-03-17 09:00

Credits

Jan Holtkötter

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4208",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-17T13:16:53.008295Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-17T13:17:07.532Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://packagist.org",
          "defaultStatus": "unaffected",
          "packageName": "ralffreit/mfa-email",
          "product": "Extension \"E-Mail MFA Provider\"",
          "repo": "https://github.com/MrSilaz/mfa_email",
          "vendor": "TYPO3",
          "versions": [
            {
              "lessThanOrEqual": "1.0.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Jan Holtk\u00f6tter"
        }
      ],
      "datePublic": "2026-03-17T09:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan\u003eThe extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.\u003c/span\u003e"
            }
          ],
          "value": "The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-24T17:20:39.697Z",
        "orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
        "shortName": "TYPO3"
      },
      "references": [
        {
          "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-007"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Authentication Bypass in extension \"E-Mail MFA Provider\" (mfa_email)",
      "x_generator": {
        "engine": "Vulnogram 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
    "assignerShortName": "TYPO3",
    "cveId": "CVE-2026-4208",
    "datePublished": "2026-03-17T08:34:52.141Z",
    "dateReserved": "2026-03-15T11:55:45.299Z",
    "dateUpdated": "2026-03-24T17:20:39.697Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-29R8-GVX4-R9W3

CVE-2026-4208 (GCVE-0-2026-4208)

Tags

Sightings

Nomenclature