CVE-2021-4226

critical

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.

References

https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352

Details

Source: Mitre, NVD

Published: 2022-12-15

Updated: 2025-05-27

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00073