CVE-2026-120330
Received Received - Intake

Unauthorized Access to Mail Data in TYPO3 CMS

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: TYPO3

Description
Backend actions and ajax routes of the mail module do not check whether the backend user has access to the page of the requested mail or recipient group. Backend users with access to the mail module can view, change, send and export mails and recipient groups outside their web mounts, including the personal data of recipients.

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-03
AI Q&A
2026-11-03
EPSS Evaluated
N/A
NVD
CVE-2026-120330
EUVD
EUVD-2026-115739

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
TYPO3 Extension "Mail" 4.0.0
TYPO3 Extension "Mail" 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability affects the TYPO3 Mail extension. Backend users with access to the mail module can perform unauthorized actions like viewing, changing, sending, and exporting mails or recipient groups outside their designated web mounts. This includes accessing personal data of recipients without proper permissions.

Impact Analysis

Unauthorized users could access, modify, or export sensitive emails and recipient data. This could lead to data breaches, privacy violations, and unauthorized dissemination of personal information. The impact depends on the data handled by the affected system.

Compliance Impact

This vulnerability could violate GDPR by allowing unauthorized access to personal data and HIPAA by exposing protected health information. It undermines data protection requirements for access controls and audit logging.

Mitigation Strategies

Update the TYPO3 Mail extension to the latest patched version immediately. Review backend user permissions to ensure they only have access to necessary web mounts and mail modules. Disable or restrict access to the mail module for users without explicit need.

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