CVE-2021-4451

NinjaFirewall <= 4.3.3 - Authenticated PHAR Deserialization

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).

Category

6.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.37%
Third-Party Advisory wordfence.com
Affected: nintechnet NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall
Published at:
Updated at:

References

Link Tags
https://www.wordfence.com/threat-intel/vulnerabilities/id/1a1fc6c9-50cd-40fd-a777-9eed98aab797?source=cve third party advisory
https://blog.nintechnet.com/security-issue-fixed-in-ninjafirewall-wp-edition/ patch

Frequently Asked Questions

What is the severity of CVE-2021-4451?
CVE-2021-4451 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4451?
To fix CVE-2021-4451, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4451 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4451 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4451?
CVE-2021-4451 affects nintechnet NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall.
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