MetaSlider Slideshow 3.111.1: Sanitization, Fatal Error, and Single-Slide Fixes

This post is about a release of the MetaSlider Slideshow plugin. With MetaSlider Slideshow, you can create a stylish, SEO-optimized slider in minutes.

MetaSlider Slideshow 3.111.1 is a maintenance release focused on safer settings handling, stability, and a small front-end polish fix.

Site owners should update to get improved slideshow setting sanitization, a fix for an HTMLPurifier-related fatal error, and cleaner controls when a slideshow contains only one slide.

What’s fixed in this release

• Improved settings sanitization: Slideshow settings are now sanitized more consistently, including a fix for an XSS issue in the delay post meta setting.
• Better permission handling: Slideshow creation now uses more appropriate WordPress capabilities for the slideshow custom post type.
• HTMLPurifier fatal error fix: The plugin now checks for the required HTMLPurifier class before using it, preventing a fatal error in affected environments.
• Cleaner single-slide display: Pause and play controls are no longer shown when a slideshow has only one slide. This is a small but useful usability improvement: if there is nothing to pause or advance through, visitors will no longer see controls that do not serve a purpose.

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For developers

• Sass tooling update: The build process has moved from the deprecated node-sass package to the modern sass npm package.
• Development workflow refresh: The project has migrated to the newer shared development workspace and GitHub workflow setup.

This post provides an overview of the new features in this release of the MetaSlider Slideshow plugin. The complete changelogs for both Free and Pro versions are available in our Docs area.