Stored Cross-Site Scripting Vulnerability in Tournament Bracket Generator Plugin from WordPress

CVE-2025-6290

What is CVE-2025-6290?

The Tournament Bracket Generator plugin for WordPress is susceptible to Stored Cross-Site Scripting (XSS) vulnerabilities, specifically through the 'bracket' shortcode. This vulnerability arises from inadequate input sanitization and output escaping for user-supplied attributes. An attacker with contributor-level access can exploit this flaw to inject malicious web scripts into pages. These scripts will execute in the context of user sessions when a user visits an affected page, potentially compromising user data and website integrity.

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