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CVE-2026-3455

MEDIUM

6.1

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.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/3/2026

Last Modified3/13/2026

Sourcenvd

Honeypot Sightings0

Affected Products

nodemailer:mailparser

Weaknesses (CWE)

CWE-79

References

https://gist.github.com/hayageek/7fcb225e3b1ea9a341d560403fbb585a(report@snyk.io)

https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08(report@snyk.io)

https://github.com/nodemailer/mailparser/issues/412(report@snyk.io)

https://security.snyk.io/vuln/SNYK-JS-MAILPARSER-15204032(report@snyk.io)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.