CVE-2021-24965
WordPress vulnerability analysis and mitigation

Overview

CVE-2021-24965 is a Stored Cross-Site Scripting vulnerability affecting the Five Star Restaurant Reservations WordPress plugin versions below 2.4.8. The vulnerability was discovered and publicly disclosed on December 21, 2021, by security researcher Krzysztof Zając (WPScan).

Technical details

The vulnerability stems from improper security controls in the rtbwelcomeset_schedule AJAX action. The plugin lacks both capability and CSRF checks, combined with insufficient sanitization and escaping of user input. This vulnerability has been assigned a CVSS score of 8.0 (High) and is classified under CWE-79 (Cross-Site Scripting) (WPScan).

Impact

The vulnerability allows authenticated users with roles as low as subscriber to perform Cross-Site Scripting attacks against logged-in administrators. When successfully exploited, the XSS payload is triggered in the plugin's settings page at wp-admin/admin.php?page=rtb-settings (WPScan).

Mitigation and workarounds

The vulnerability has been patched in version 2.4.8 of the Five Star Restaurant Reservations plugin. Website administrators are advised to update to this version or later to mitigate the risk (WPScan).

Additional resources


SourceThis report was generated using AI

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