CVE-2025-62366

mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Mailgen versions through 2.0.30 contain an HTML injection vulnerability in plaintext emails produced by the generatePlaintext method when user‑generated content is supplied. The function attempts to remove HTML tags, but if tags are provided as encoded HTML entities they are not removed and are later decoded, resulting in active HTML (for example an img tag with an event handler) in the supposed plaintext output. In contexts where the generated plaintext string is subsequently rendered as HTML, this can allow execution of attacker‑controlled JavaScript. Versions 2.0.31 and later contain a fix. No known workarounds exist.

CVSS

No CVSS.

References

Link	Resource
https://github.com/eladnava/mailgen/commit/7279a983481d05c51aa451e86146f98aaa42fee9
https://github.com/eladnava/mailgen/security/advisories/GHSA-xw6r-chmh-vpmj

Configurations

No configuration.

History

14 Oct 2025, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-14 16:15

Updated : 2025-10-14 19:36

NVD link : CVE-2025-62366

Mitre link : CVE-2025-62366

CVE.ORG link : CVE-2025-62366

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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