CVE-2025-62366

LOW EPSS 30.5%
Published Oct 14, 20258mo ago · Modified Jun 17, 20261w ago
2.9 CVSS 4.0
Low
Find Similar
Published Oct 14, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
2.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/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 None
Scope X

Threat Intelligence

EPSS Exploit Probability
30.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.