Description

The NinjaFirewall plugin for WordPress is vulnerable to Authenticated PHAR Deserialization in versions up to, and including, 4.3.3. This allows authenticated attackers to perform phar deserialization on the server. This deserialization can allow other plugin or theme exploits if vulnerable software is present (WordPress, and NinjaFirewall).

INFO

Published Date :

2024-10-16T06:43:24.799Z

Last Modified :

2026-04-08T16:38:00.833Z

Source :

Wordfence
AFFECTED PRODUCTS

The following products are affected by CVE-2021-4451 vulnerability.

Vendors Products
Ninjatechnologiesnetwork
  • Ninja Firewall
Nintechnet
  • Ninjafirewall
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-4451.

URL Resource
https://blog.nintechnet.com/security-issue-fixed-in-ninjafirewall-wp-edition/ cve-icon cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/1a1fc6c9-50cd-40fd-a777-9eed98aab797?source=cve cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact