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MEDIUM · 5.4

CVE-2021-20856

Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary...

Vulnerability Description

Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
ElecomWrh-733Gbk Firmware<= 1.02.9
ElecomWrh-733Gbk-
ElecomWrh-733Gwh Firmware<= 1.02.9
ElecomWrh-733Gwh-

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2021-20856?

CVE-2021-20856 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a remote authenticated attacker to inject an arbitrary...

How severe is CVE-2021-20856?

CVE-2021-20856 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20856?

Check the references section above for vendor advisories and patch information. Affected products include: Elecom Wrh-733Gbk Firmware, Elecom Wrh-733Gbk, Elecom Wrh-733Gwh Firmware, Elecom Wrh-733Gwh.