Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PluginOps MailChimp Subscribe Forms allows Stored XSS.This issue affects MailChimp Subscribe Forms : from n/a through 4.0.9.9.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.