Stored Cross-Site Scripting in Thumbnail Slider With Lightbox for WordPress

CVE-2023-5621

What is CVE-2023-5621?

The Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to a Stored Cross-Site Scripting issue through the Image Title field due to inadequate input sanitization and output escaping. This vulnerability allows authenticated attackers with administrator-level access to inject arbitrary scripts into pages, which will execute when other users access the affected pages. This issue specifically impacts multi-site installations and those where unfiltered HTML content is disabled, posing a significant risk to users and website security.

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