CVE-2026-120330

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

Product

Extension "Mail"

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

TYPO3 Extension "Mail"4.2.0, 3.12.5 or later

Vendor advisories

typo3.org/security/advisory/typo3-ext-sa-2026-037

Affected products

Product	Affected versions	Fixed in
TYPO3 Extension "Mail"	4.0.0 ≤ v < 4.2.0, v < 3.12.5	4.2.0, 3.12.5

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