CVE-2021-4226

EUVD-2021-34084
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
Affected Products (NVD)
VendorProductVersion
rsjoomlarsfirewall\!
𝑥
< 1.1.25
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352
https://wpscan.com/vulnerability/c0ed80c8-ebbf-4ed9-b02f-31660097c352