XSS in Elecom Wrh-733gbk
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 script via unspecified vectors.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (44.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Elecom Wrh-733gbk
- Elecom Wrh-733gbk_firmware
- Elecom Wrh-733gwh
- Elecom Wrh-733gwh_firmware
- Elecom Co.,ltd. Lan Routers — versions WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior
Weakness classification (CWE)
References
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-20856?
- CVE-2021-20856 is a medium-severity vulnerability in Elecom Wrh-733gbk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-12-01.
- How severe is CVE-2021-20856?
- Medium severity. CVSS v3 base score is 5.4 out of 10.