CVE-2026-3455

LOW EPSS 22.8%
Published Mar 3, 20264mo ago · Modified Jun 17, 20262w ago
2.0 CVSS 4.0
Low
Find Similar
Published Mar 3, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.0
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
22.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
nodemailermailparser* <3.9.3

References 4

  • gist.github.com https://gist.github.com/hayageek/7fcb225e3b1ea9a341d560403fbb585a
    ExploitThird Party Advisory
  • github.com https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08
    Patch
  • github.com https://github.com/nodemailer/mailparser/issues/412
    Issue Tracking
  • security.snyk.io https://security.snyk.io/vuln/SNYK-JS-MAILPARSER-15204032
    Third Party Advisory

Remediation

  • github.com https://github.com/nodemailer/mailparser/commit/921a67df4cfb38f0b411037d7b26fbd4d5411b08
    Patch