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CVE-2021-4350

MEDIUM 5.3 CVSS 3.1
Published
June 7, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated HTML Injection in versions up to, and including, 18.2. This is due to lacking authentication protections on the wpfm_send_file_in_email AJAX action. This makes it possible for unauthenticated attackers to send emails using the site with a custom subject, recipient email, and body with unsanitized HTML content. This effectively lets the attacker use the site as a spam relay.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • nmedia Frontend File Manager Plugin — Before 18.3
  • najeebmedia frontend_file_manager_plugin — Up to and including 18.2

References

  • blog.nintechnet.com https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/ Exploit
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/49150180-9de0-4318-b21b-779daaeb7a52?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record