vulnerability
WordPress Plugin: rsfirewall: CVE-2021-4226: Use of Less Trusted Source
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | Apr 13, 2022 | May 15, 2025 | May 5, 2026 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
Apr 13, 2022
Added
May 15, 2025
Modified
May 5, 2026
Description
The RSFirewall! plugin for WordPress is vulnerable to IP Address Spoofing in versions less than and equal to 1.1.24 due to insufficient IP address validation. This makes it possible for attackers to bypass blocks and access services they should not be able to.
Solution
rsfirewall-plugin-cve-2021-4226
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.