I received an email from my provider, they indicated that they had been contacted by SpamCop. Apparently there is a link on my blog that included in a SPAM message and it is redirecting users to sex related site.
http://www.?.com/wp-content/plugins/newsletter/statistics/link.phpr=MDswO2h0dHA6Ly9jb25zdWx0dHJ1ZW5vcnRoLmNvbS93cC1jb250ZW50L3VwbG9hZHMvemh1by87MA==e21ad4e5ae02fa4f559/68c07b10133dbee6a028d3a03.html
When this link is clicked on, then it redirects to an external site.
I noticed that the modified date for almost everything under the newsletter directory was yesterday and the permission is currently 777, that seems wrong to me.
Are you aware of any vulnerabilities or how I can fix this?
Thanks