CyberRota Analysis
AI-GeneratedThe Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in specific functions, allowing authenticated attackers with Contributor-level access or higher to inject malicious scripts. This vulnerability can lead to the execution of arbitrary web scripts on affected pages, posing a risk to users who visit those pages. WordPress site administrators using this plugin should prioritize patching or updating to mitigate potential exploitation.
Original NVD Description
The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'target' attribute of the [newsletters_post] shortcode in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the posts_single() function which propagates the attacker-controlled 'target' attribute into the global $wpml_target, and in the shortcode_posts() 'post_thumbnail' handler which concatenates $wpml_target into a target="..." HTML attribute without esc_attr(). 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.