Ithemes · Easy Canadian Sales Taxes Add-On For Ithemes Exchange · CVE-2015-9367
**Name of the Vulnerable Software and Affected Versions**
Easy Canadian Sales Taxes Add-on for iThemes Exchange versions prior to 1.1.0
**Description**
The issue concerns a problem with the Easy Canadian Sales Taxes Add-on for iThemes Exchange, where there is a potential for XSS (Cross-Site Scripting) attacks. This is due to the use of `add query arg()` and `remove query arg()` functions.
**Recommendations**
For versions prior to 1.1.0, update to version 1.1.0 or later to resolve the issue.