CVE-2022-4657: 
WordPress vulnerability analysis and mitigation

The Restaurant Menu WordPress plugin before version 2.3.6 contains a stored Cross-Site Scripting (XSS) vulnerability identified as CVE-2022-4657. The vulnerability was discovered and publicly disclosed on January 16, 2023. The issue affects the plugin's shortcode functionality, specifically impacting users with contributor roles and above (WPScan).

The vulnerability stems from improper validation and escaping of shortcode attributes before they are output back in pages or posts where the shortcode is embedded. The vulnerability has been assigned a CVSS score of 6.8 (medium severity) and is classified under CWE-79. The issue specifically relates to the menu-ordering-reservations functionality within the plugin (WPScan).

This vulnerability allows authenticated users with contributor privileges or higher to perform Stored Cross-Site Scripting attacks. When successfully exploited, attackers can inject malicious JavaScript code that executes in the context of other users' browsers when they view the affected pages (WPScan).

The vulnerability has been fixed in version 2.3.6 of the Restaurant Menu plugin. Users are advised to update to this version or later to mitigate the security risk (WPScan).