ELECOM wireless LAN routers contain a cross-site scripting vulnerability. Assume that a malicious administrative user configures the affected product with specially crafted content. When another administrative user logs in and operates the product, an arbitrary script may be executed on the web browser. Affected products and versions are as follows: WRC-1167GS2-B v1.67 and earlier, WRC-1167GS2H-B v1.67 and earlier, WRC-2533GS2-B v1.62 and earlier, WRC-2533GS2-W v1.62 and earlier, WRC-2533GS2V-B v1.62 and earlier, WRC-X3200GST3-B v1.25 and earlier, and WRC-G01-W v1.24 and earlier.