CVE-2025-62380

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-62380
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-62380.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-62380
Aliases
Published
2025-10-15T16:52:39.407Z
Modified
2025-12-02T20:16:48.578754Z
Severity
  • 2.9 (Low) CVSS_V4 - 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 CVSS Calculator
Summary
Mailgen has HTML Injection and XSS Filter Bypass in Plaintext Emails
Details

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.

Database specific
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62380.json",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Git / github.com/eladnava/mailgen

Affected ranges

Type
GIT
Repo
https://github.com/eladnava/mailgen
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed