All In One WP Security & Firewall 5.0.0 - 5.0.7 - Protection Bypass via IP Spoofing
Strategic Overview
- Status
- Patched in 5.0.8
- Affected Plugin
- All-In-One Security (AIOS) – Security and Firewall
- Affected Version
5.0.0 – 5.0.7- CVSS
- 6.5Medium
- Weakness type
- CWE-348 · Use of Less Trusted Source
- CVE
CVE pending
At a glance
This record tracks a medium-severity Use of Less Trusted Source vulnerability in the All-In-One Security (AIOS) WordPress plugin, affecting versions 5.0.0 – 5.0.7. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 5.0.8; sites on affected versions should update now. Disclosed September 2022, reported by Calvin Alkan.
Vulnerability Overview
The All In One WP Security & Firewall plugin for WordPress is vulnerable to IP Address Spoofing in versions 5.0.0 - 5.0.7 (both included) due to insufficient IP address validation. This makes it possible for attackers to bypass IP blocks and access services even if their IP address is blocked.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.
CWE-348: Use of Less Trusted Source
The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.
Remediation
Update to version 5.0.8, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to All-In-One Security (AIOS): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: All-In-One Security (AIOS) 5.0.8 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in All-In-One Security (AIOS) – Security and Firewall
- 9.8CVE-2016-10887: All In One WP Security & Firewall SQL Injection
CVE-2016-10887 - 9.8CVE-2016-10888: All In One WP Security & Firewall SQL Injection
CVE-2016-10888 - 9.8CVE-2015-9310: All In One WP Security & Firewall SQL Injection
CVE-2015-9310 - 9.0CVE-2015-0894: All In One WP Security & Firewall SQL Injection
CVE-2015-0894 - 8.8CVE-2022-44737: All In One WP Security & Firewall <= 5.1.0 CSRF
CVE-2022-44737 - 8.8All In One WP Security & Firewall <= 5.1.0 Cross-Site Request Forgery
- 7.4CVE-2014-6242: All In One WP Security & Firewall Access or CSRF
CVE-2014-6242 - 7.2CVE-2026-8438: All-In-One Security (AIOS) <= 5.4.7 Stored XSS
CVE-2026-8438
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C