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CVE-2021-4226

RSFirewall < 1.1.25 - IP Block Bypass

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.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Rsjoomla
Products
Rsfirewall\!