CVE-2024-9421

Summary

CVE-2024-9421 is a stored Cross-Site Scripting (XSS) vulnerability affecting the Login Logout Shortcode plugin for WordPress. This issue, present in all versions up to 1.1.0, allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts via the 'class' parameter. Input sanitization and output escaping were found to be insufficient, leading to the execution of injected scripts whenever a user accesses an affected page. This vulnerability poses a significant risk, as it can be exploited to steal user data, manipulate page content, or launch further attacks. WordPress users are advised to update to the latest version of the plugin to mitigate this threat.

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