CVE-2022-4576 – Easy Bootstrap Shortcode <= 4.5.4 - Contributor+ Stored XSS

https://notcve.org/view.php?id=CVE-2022-4576

The Easy Bootstrap Shortcode WordPress plugin through 4.5.4 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins. El complemento Easy Bootstrap Shortcode de WordPress hasta 4.5.4 no valida ni escapa algunos de sus atributos de shortcode antes de devolverlos a la página, lo que podría permitir a los usuarios con un rol tan bajo como colaborador realizar ataques de cross-site scripting almacenado que podrían ser utilizados contra usuarios con privilegios elevados, como administradores. The Easy Bootstrap Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'theme_hrrule' function and multiple other short codes in versions up to, and including, 4.5.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with contributor capabilities or above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.  • https://wpscan.com/vulnerability/0d679e0e-891b-44f1-ac7f-a766e12956e0 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •