CVE-2026-120332— Cross-Site Scripting in extension "Mail" (mail)

Quick assessment

Affected

TYPO3 Extension "Mail"

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

邮件的 HTML 内容以及被追踪的 URL 在后台模块中未经转义即被渲染。拥有邮件模块访问权限的后台用户可以注入任意 HTML 和 JavaScript 代码，这些代码将在其他后台用户查看邮件预览或报告时，以其用户上下文被执行。

CVSS 5.1 · Medium Updated Nov 03, 2026

Possible ATT&CK Techniques 3 AI

T1190 · Exploit Public-Facing Application T1059 · Command and Scripting Interpreter T1201 · Password Policy Discovery

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Vulnerability Information

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Vulnerability Title

Cross-Site Scripting in extension "Mail" (mail)

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
TYPO3	Extension "Mail"	4.0.0 ~ 4.2.0	-

II. Public POCs for CVE-2026-120332

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-120332

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Other References for CVE-2026-120332 (1)

https://typo3.org/security/advisory/typo3-ext-sa-2026-037 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-120332

Same Patch Batch · TYPO3 · 2026-11-03 · 7 CVEs total

CVE-2026-120333	8.8 HIGH	Broken Access Control in extension "Frontend User Registration" (sf_register)
CVE-2026-120330	7.1 HIGH	Broken Access Control in extension "Mail" (mail)
CVE-2026-120328	6.9 MEDIUM	Information Disclosure in extension "Mail" (mail)
CVE-2026-120327	5.3 MEDIUM	Open Redirection in extension "Mail" (mail)
CVE-2026-120329	5.3 MEDIUM	Broken Access Control in extension "Mail" (mail)
CVE-2026-120331	5.3 MEDIUM	Server-Side Request Forgery in extension "Mail" (mail)

IV. Related Vulnerabilities

Same product: Extension "Mail"

Same vendor: TYPO3

Same weakness: CWE-79