CVE-2021-4350: najeebmedia frontend_file_manager_plugin Missing Authorization
Vulnerability summary
CVE-2021-4350 is a high (CVSS 7.2) Missing Authorization vulnerability in najeebmedia frontend_file_manager_plugin. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.1% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 07-06-2023PublishedVulnerability first disclosed.
- 08-04-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
- wordfenceSource7.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
0.00 pp
From 0.67% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (blog.nintechnet.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Najeebmedia1 product
Nmedia1 product
Wordpress1 product
- nmedia-user-file-uploader< 18.3
3 vendors · 3 products