CVE-2021-20856

medium

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.

References

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

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-8265

Details

Source: Mitre, NVD

Published: 2021-12-01

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 3.5

Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 5.4

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

Severity: Medium

EPSS

EPSS: 0.00605

Detections

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