What’s Vulnerable › Vulnerabilities

CVE-2021-4351: Frontend File Manager <= 18.2 - Unauthenticated Post Meta Change

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-862

Description

The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Post Meta Change in versions up to, and including, 18.2. This is due to lacking authentication protections, capability checks, and sanitization, all on the wpfm_file_meta_update AJAX action. This makes it possible for unauthenticated attackers to change the meta data of certain posts and pages.

Affected products

• nmedia Frontend File Manager Plugin: through 18.2

References

• https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5539aa79-66ad-43fa-967c-2bec877061e0?source=cve
• https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5539aa79-66ad-43fa-967c-2bec877061e0?source=cve

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