CVE-2021-20856

Published: Dec 1, 2021Modified: Nov 21, 2024

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: NVD

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.

Affected (2)

Products: Elecom: Wrh 733gbk Firmware, Wrh 733gwh Firmware

Elecom

2 products

Wrh 733gbk Firmware

Wrh 733gwh Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Elecom Wrh 733gbk Firmware	Up to 1.02.9

Running on/with	Platform Versions
Elecom Wrh 733gbk	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Elecom Wrh 733gwh Firmware	Up to 1.02.9

Running on/with	Platform Versions
Elecom Wrh 733gwh	All versions

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://jvn.jp/en/jp/JVN88993473/index.html

Source: vultures@jpcert.or.jp

Third Party Advisory

https://www.elecom.co.jp/news/security/20211130-01/

Source: vultures@jpcert.or.jp

Vendor Advisory

https://jvn.jp/en/jp/JVN88993473/index.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.elecom.co.jp/news/security/20211130-01/

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.