CVE-2026-120328

Medium

Description

The click tracking middleware does not validate the authentication code of a recipient if the code is omitted. Unauthenticated attackers can retrieve personal data of newsletter recipients, which is inserted into links of sent mails.

SeverityMedium

CVSS6.9

Exploit probability—

Product

Extension "Mail"

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

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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