---
id: CVE-2026-120327
title: Open Redirection in extension "Mail" (mail)
summary: >-
  The click tracking middleware accepts an arbitrary target URL and redirects to
  it. Attackers can misuse links to the website to redirect users to external
  sites.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N'
cvssSource: cna
cwe:
  - CWE-601
vendor: TYPO3
product: mediaessenz/mail
affected:
  - mediaessenz/mail >= 4.0.0 < 4.2.0
  - mediaessenz/mail < 3.12.5
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-03T17:52:09.846990Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T18:31:34.992Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120327'
references:
  - url: 'https://typo3.org/security/advisory/typo3-ext-sa-2026-037'
tags:
  - cve.org
epss: 0.00339
epssPercentile: 0.27484
ingestedAt: '2026-11-05T20:33:06.362Z'
---

## Overview

The click tracking middleware accepts an arbitrary target URL and redirects to it. Attackers can misuse links to the website to redirect users to external sites.

## Affected

- `mediaessenz/mail >= 4.0.0 < 4.2.0`
- `mediaessenz/mail < 3.12.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.