Easy EU Value Added (VAT) Taxes Add-on for iThemes Exchange before 1.2.0 for WordPress has XSS via add_query_arg() and remove_query_arg().
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.
Link | Tags |
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https://blog.sucuri.net/2015/04/security-advisory-xss-vulnerability-affecting-multiple-wordpress-plugins.html | third party advisory |
https://ithemes.com/coordinated-wordpress-plugin-security-update/ | patch vendor advisory |