Stripe Add-on for iThemes Exchange before 1.2.0 for WordPress has XSS via add_query_arg() and remove_query_arg().
https://ithemes.com/coordinated-wordpress-plugin-security-update/
https://blog.sucuri.net/2015/04/security-advisory-xss-vulnerability-affecting-multiple-wordpress-plugins.html
Source: Mitre, NVD
Published: 2019-08-28
Updated: 2019-09-03
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.00439