WPC Badge Management for WooCommerce <= 3.1.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'text' Attribute

Description

The WPC Badge Management for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'text' attribute of the `wpcbm_best_seller` shortcode in all versions up to, and including, 3.1.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/588e12c4-7d68-40ac-82bc-aacc5d389dee?source=cve
• https://wordpress.org/plugins/wpc-badge-management
• https://plugins.trac.wordpress.org/browser/wpc-badge-management/trunk/includes/class-shortcode.php#L141
• https://plugins.trac.wordpress.org/browser/wpc-badge-management/tags/3.1.5/includes/class-shortcode.php#L141
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3519100%40wpc-badge-management%2Ftrunk&old=3483376%40wpc-badge-management%2Ftrunk&sfp_email=&sfph_mail=

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