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Status published
Medium
CVE-2021-20856
Cross-site scripting vulnerability in ELECOM LAN routers (WRH-733GBK firmware v1.02.9...
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
More from ELECOM CO.,LTD.
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WRC-BE36QS-B and WRC-W701-B contain an improper neutralization of special elements...
High
8.6
CVE-2025-48890
WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements...
Critical
9.3
CVE-2025-46267
Hidden functionality issue exists in WRC-BE36QS-B and WRC-W701-B. If exploited,...
Medium
6.9
CVE-2025-43879
WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements...
Critical
9.3
Affected Vendor
ELECOM CO.,LTD.
View all reports →Affected Software
ELECOM LAN routers
Vulnerable Versions:
WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior
Timeline
Official Publish:
December 1st, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.