MuYuCMS Add Fiend Link index.html server-side request forgery

A vulnerability was found in MuYuCMS up to 2.7. Impacted is an unknown function of the file /index/index.html of the component Add Fiend Link Handler. Performing manipulation of the argument Link URL results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used.