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Sidebar-Content from Shortcode <= 2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
EntreBase Advisory: The Sidebar-Content from Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.0 due to insufficient input sanitization and output escaping. 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.
Read more about this vulnerability: https://www.wordfence.com/threat-intel/vulnerabilities/id/d6bf752e-56be-42fc-b2d7-0a9658287c3b?source=api-prod