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Critical severity9.8NVD Advisory· Published Dec 15, 2022· Updated Jun 17, 2026

CVE-2021-4226

CVE-2021-4226

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

RSFirewall/RSFirewalldescription
WordPress/Rsfirewallllm-fuzzy
Package: https://wordpress.org/plugins/rsfirewall

Patches

Vulnerability mechanics

References

1

wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352nvdExploitThird Party Advisory

News mentions

0

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