CVE-2022-21799

Severity: medium (CVSS 5.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-08 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting vulnerability in ELECOM LAN router WRC-300FEBK-R firmware v1.13 and earlier allows an attacker on the adjacent network to inject an arbitrary script via unspecified vectors.

Affected products

Elecom Wrc-300Febk-R Firmware: before 1.16 — fixed in 1.16

How to fix

Upgrade to a fixed version: Elecom Wrc-300Febk-R Firmware 1.16. Check the vendor advisory for mitigations.

References

https://jvn.jp/en/jp/JVN17482543/index.html
https://www.elecom.co.jp/news/security/20220208-02/
https://jvn.jp/en/jp/JVN17482543/index.html
https://www.elecom.co.jp/news/security/20220208-02/

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