1. Home
  2. CVE Database
  3. CVE-2021-4451
MEDIUM · 6.6

CVE-2021-4451

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 ...

Vulnerability 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 Score

6.6

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
NintechnetNinjafirewall<= 4.3.3

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2021-4451?

CVE-2021-4451 is a vulnerability with a CVSS score of 6.6 (MEDIUM). 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 ...

How severe is CVE-2021-4451?

CVE-2021-4451 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-4451?

Check the references section above for vendor advisories and patch information. Affected products include: Nintechnet Ninjafirewall.