CyberRota Analysis
AI-GeneratedThe Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the 'emd_mb_meta' shortcode, affecting versions up to 4.0.4. This vulnerability allows authenticated attackers with author-level access to inject malicious scripts into pages, which will execute when users visit those pages. WordPress site administrators and developers using this plugin should prioritize patching to mitigate the risk of exploitation.
Original NVD Description
The Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.0.4 via the 'emd_mb_meta' shortcode. This is due to insufficient input sanitization and output escaping on attachment titles referenced by the shortcode's image field: EMD_MB_Helper::image_info() returns the attachment's raw post_title, and EMD_MB_Helper::shortcode() interpolates it into title="%s" HTML attributes via sprintf() without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above (upload_files capability required to create the attachment, edit_posts/publish_posts to embed the shortcode), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.