CVE-2026-120332

Medium

Description

The HTML content of mails and tracked URLs are rendered unescaped in the backend module. Backend users with access to the mail module can inject arbitrary HTML and JavaScript, which is executed in the context of other backend users viewing the mail preview or report.

SeverityMedium

CVSS5.1

Exploit probability—

Product

Extension "Mail"

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

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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