D-LINK DIR-806 1200M11AC wireless router DIR806A1_FW100CNb11 is vulnerable to command injection due to lax filtering of HTTP_ST parameters.
https://github.com/mmmmmx1/dlink/blob/main/DIR-806/1/readme.md
http://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-806