CVE-2021-4451

HIGH EPSS 45.1%
Published Oct 16, 20241y ago · Modified Jun 17, 20262w ago
7.2 CVSS 3.1
High
Find Similar
Published Oct 16, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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).

CVSS Details

Base Score
7.2
Exploitability
1.2
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
45.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

Affected Products 1

VendorProductVersionRange
nintechnetninjafirewall* ≤4.3.3

References 2

  • blog.nintechnet.com https://blog.nintechnet.com/security-issue-fixed-in-ninjafirewall-wp-edition/
    Patch
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/1a1fc6c9-50cd-40fd-a777-9eed98aab797?source=cve
    Third Party Advisory

Remediation

  • blog.nintechnet.com https://blog.nintechnet.com/security-issue-fixed-in-ninjafirewall-wp-edition/
    Patch