TYPO3 Mail up to 3.12.4/4.1.x cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k3.54+

Summaryinfo

A vulnerability was found in TYPO3 Mail up to 3.12.4/4.1.x. It has been classified as problematic. This issue affects some unknown processing of the component Mail Module. This manipulation causes cross site scripting. This vulnerability is registered as CVE-2026-120332. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in TYPO3 Mail up to 3.12.4/4.1.x. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Mail Module. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The advisory is shared at typo3.org. This vulnerability is known as CVE-2026-120332 since 11/01/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 3.12.5 or 4.2.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mail 3.12.5/4.2.0

Timelineinfo

11/01/2026 CVE reserved
11/03/2026 +2 days Advisory disclosed
11/03/2026 +0 days VulDB entry created
11/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: typo3.org
Status: Confirmed

CNA: TYPO3
CVE: CVE-2026-120332 (🔒)

GCVE (CVE): GCVE-0-2026-120332
GCVE (VulDB): GCVE-100-430225

Entryinfo

Created: 11/03/2026 11:26
Changes: 11/03/2026 11:26 (67)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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