Description
WordPress Plugin Donorbox-Free Recurring Donation Form is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Donorbox-Free Recurring Donation Form version 7.1.1 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 7.1.2 or latest
References
https://gist.github.com/sybrew/833bf49d81bc8246fba8dabf8a3ba12a
https://plugins.svn.wordpress.org/donorbox-donation-form/trunk/readme.txt