The systeminformation library for Node.JS has a SSID Command Injection Vulnerability. This issue affects versions 5.0.0 through 5.21.6. The problem was fixed with a parameter check in version 5.21.7. The vulnerability can be exploited through the `wifiConnections()` and `wifiNetworks()` functions, specifically when passing string parameters. It is estimated that the library has 8 monthly downloads, potentially affecting a significant number of devices.