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VULNERABILITIES

CVE-2026-3455 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://gist.github.com/hayageek/7fcb225e3b1ea9a341d560403fbb585a [email protected]ExploitThird Party Advisory
https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08 [email protected]Patch
https://github.com/nodemailer/mailparser/issues/412 [email protected]Issue Tracking
https://security.snyk.io/vuln/SNYK-JS-MAILPARSER-15204032 [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
nodemailer mailparser
< 3.9.3

CPE

  • cpe:2.3:a:nodemailer:mailparser:*:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3455
NVD Published Date:
Mar 3, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-3455 Details - Not Deferred