CVE-2021-4226

Public Exploit
RSFirewall < 1.1.25 - IP Block Bypass

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory wpscan.com
Affected: Unknown RSFirewall!
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352 exploit vdb entry technical description third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-4226?
CVE-2021-4226 has been scored as a critical severity vulnerability.
How to fix CVE-2021-4226?
To fix CVE-2021-4226, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4226 being actively exploited in the wild?
It is possible that CVE-2021-4226 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4226?
CVE-2021-4226 affects Unknown RSFirewall!.
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