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…

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Mar 3, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe nodemailer/mailparserversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-3455

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-3455

  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 U

  nvd.nist.gov

References

• Exploit · gist.github.com
• Patch · github.com
• Issue Tracking · github.com
• Third Party Advisory · security.snyk.io