CVE-2025-59526

Mailgen: HTML injection vulnerability in plaintext e-mails

State
Published
Severity
2.7 Low
Published
Sep 22, 2025
Updated
Sep 22, 2025
Reserved
Sep 17, 2025

Read the record on cve.org

Description

mailgen is a Node.js package that generates responsive HTML e-mails for sending transactional mail. Prior to version 2.0.30, there is an HTML injection vulnerability in plaintext e-mails generated by Mailgen. Projects are affected if the Mailgen.generatePlaintext(email) method is used and given user-generated content. This vulnerability has been patched in version 2.0.30. A workaround involves stripping all HTML tags before passing any content into Mailgen.generatePlaintext(email).

Scores

CVSSScoreVectorSource
4.02.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L/E:UGitHub_M

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
mailgeneladnava
  • < 2.0.30Affected

References

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