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CVE-2021-4226 Details
Description
RSFirewall tries to identify the original IP address by looking at different HTTP headers. A bypass is possible due to the way it is implemented.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 21, 2025Exploitation: PocAutomatable: YesTechnical Impact: Total
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352 | CVE | ExploitThird Party Advisory |
| https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-345 | Insufficient Verification of Data Authenticity | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| rsjoomla rsfirewall! | < 1.1.25 |
CPE
Remediation
| |
Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| May 27, 2025 | Modified Analysis | [email protected] |
| Apr 21, 2025 | CVE Modified | CISA-ADP |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Nov 7, 2023 | CVE Modified | [email protected] |
| Dec 20, 2022 | Initial Analysis | [email protected] |