CVE-2023-24402 in Veribo, Roland Murg WP Booking System Plugin
Summary
by MITRE • 04/07/2023
Auth. (admin+) Cross-Site Scripting (XSS) vulnerability in Veribo, Roland Murg WP Booking System – Booking Calendar plugin <= 2.0.18 versions.
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Analysis
by VulDB Data Team • 04/27/2025
The CVE-2023-24402 vulnerability represents a critical authentication bypass issue within the Veribo Roland Murg WP Booking System plugin for WordPress platforms. This vulnerability specifically affects versions up to and including 2.0.18, creating a significant security risk for websites utilizing this booking calendar solution. The flaw allows authenticated users with administrator privileges or higher to execute cross-site scripting attacks, potentially compromising the entire WordPress installation and user data integrity.
This vulnerability stems from insufficient input validation and output escaping mechanisms within the plugin's administrative interfaces. The technical flaw manifests when administrators process booking requests or manage calendar entries, as the system fails to properly sanitize user-supplied data before rendering it in web pages. The vulnerability is classified as a CWE-79: Cross-Site Scripting attack pattern, where malicious scripts can be injected into web applications and executed in the context of other users' browsers. The attack vector specifically targets the plugin's administrative dashboard functionality, where privileged users interact with booking management features.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. An attacker with administrator access could exploit this XSS vulnerability to inject malicious scripts that manipulate the booking calendar, alter booking records, or redirect users to phishing sites. The vulnerability could also enable attackers to escalate privileges further by compromising the WordPress admin interface, potentially leading to complete system compromise. Given that this affects the booking calendar functionality, the impact could be particularly severe for businesses relying on accurate booking data for revenue management, resource allocation, and customer service operations.
Mitigation strategies for CVE-2023-24402 should prioritize immediate plugin updates to versions that have addressed this vulnerability. Organizations must ensure their WordPress installations maintain current plugin versions through automated update mechanisms where possible. Security hardening measures should include implementing Content Security Policy headers to limit script execution, regular security audits of plugin code, and monitoring for unusual administrative activities. The vulnerability aligns with ATT&CK technique T1548.001: Abuse Elevation Control Mechanism, as it leverages existing administrative privileges to execute malicious code within the application context. Additionally, implementing web application firewalls and input validation rules can provide additional defense-in-depth layers against exploitation attempts. Organizations should also conduct thorough security assessments of all WordPress plugins to identify similar vulnerabilities that could be exploited in similar administrative contexts.