NinjaFirewall <= 4.3.3 - Authenticated PHAR Deserialization
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).
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall | < 4.3.4 | 4.3.4 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- WordPress
- Package
NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall- Disclosed
- 30.05.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 1a1fc6c9-50cd-40fd-a777-9eed98aab797 - Wordfence Intelligence
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Vulnerability history: NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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