CVE-2024-6158 – Category Posts Widget (Free < 4.9.17, Pro < 4.9.13) - Admin+ Stored XSS

https://notcve.org/view.php?id=CVE-2024-6158

The Category Posts Widget WordPress plugin before 4.9.17, term-and-category-based-posts-widget WordPress plugin before 4.9.13 does not validate and escape some of its "Category Posts" widget settings before outputting them back in a page/post where the Widget is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup) The Category Posts Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the excerpt_more_text field in all versions up to, and including, 4.9.16 (and versions up to 4.9.13 for PRO) due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled. • https://wpscan.com/vulnerability/8adb219f-f0a6-4e87-8626-db26e300c220 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •