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CVE-2026-3455

Quick assessment

Affected
n/a mailparser
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.

mailparser是nodemailer开源的一个邮件解析器。 mailparser 3.9.3之前版本存在安全漏洞，该漏洞源于textToHtml函数对电子邮件内容中的URL清理不当，可能导致跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-3455

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Versions of the package mailparser before 3.9.3 are vulnerable to Cross-site Scripting (XSS) via the textToHtml() function due to the improper sanitisation of URLs in the email content. An attacker can execute arbitrary scripts in victim browsers by adding extra quote " to the URL with embedded malicious JavaScript code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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
Vulnerability Title
mailparser 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mailparser是nodemailer开源的一个邮件解析器。 mailparser 3.9.3之前版本存在安全漏洞，该漏洞源于textToHtml函数对电子邮件内容中的URL清理不当，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- mailparser 0 ~ 3.9.3 -

II. Public POCs for CVE-2026-3455

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III. Intelligence Information for CVE-2026-3455

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Patches & Fixes for CVE-2026-3455 (1)

Vendor Advisories for CVE-2026-3455 (1)

Proof of Concept for CVE-2026-3455 (2)

Same Patch Batch · n/a · 2026-03-03 · 50 CVEs total

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Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-3455

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