Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in richplugins Rich Showcase for Google Reviews widget-google-reviews allows Stored XSS.This issue affects Rich Showcase for Google Reviews: from n/a through <= 6.9.4.3.

The Rich Shortcodes for Google Reviews plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the contents of a Google Review in all versions up to, and including, 6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: This vulnerability was partially patched in version 6.6.2.

This plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode in all versions up to, and including, 3.1 due to insufficient input sanitization and output escaping on the 'place_id' attribute. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.