CVE-2025-62380

mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Mailgen versions through 2.0.31 contain an HTML injection vulnerability in plaintext emails generated with the generatePlaintext method when user generated content is supplied. The plaintext generation code attempts to strip HTML tags using a regular expression and then decodes HTML entities, but tags that include certain Unicode line separator characters are not matched and removed. These encoded tags are later decoded into valid HTML content, allowing unexpected HTML to remain in output intended to be plaintext. Projects are affected if they call Mailgen.generatePlaintext with untrusted input and then render or otherwise process the returned string in a context where HTML is interpreted. This can lead to execution of attacker supplied script in the victim’s browser. Version 2.0.32 fixes the issue.

CVSS

No CVSS.

References

Link	Resource
https://github.com/eladnava/mailgen/commit/7a791a424ff3a3f7783f8750919f1e98639924a8
https://github.com/eladnava/mailgen/security/advisories/GHSA-q4w9-x3rv-4c8j

Configurations

No configuration.

History

15 Oct 2025, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-15 17:16

Updated : 2025-10-16 15:28

NVD link : CVE-2025-62380

Mitre link : CVE-2025-62380

CVE.ORG link : CVE-2025-62380

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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