CVE-2025-26910 in WPBookit Plugin
Summary
by MITRE • 03/10/2025
Cross-Site Request Forgery (CSRF) vulnerability in Iqonic Design WPBookit allows Stored XSS. This issue affects WPBookit: from n/a through 1.0.1.
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Analysis
by VulDB Data Team • 06/28/2025
The vulnerability identified as CVE-2025-26910 represents a critical security flaw in the WPBookit plugin developed by Iqonic Design, which creates a dangerous intersection between cross-site request forgery and stored cross-site scripting attacks. This vulnerability exists within the plugin's version range from unspecified initial versions through 1.0.1, indicating a persistent issue that has not been adequately addressed in the affected releases. The flaw demonstrates a fundamental weakness in the plugin's request validation mechanisms and input sanitization processes, creating an environment where malicious actors can exploit user sessions to execute arbitrary script code within the context of the victim's browser.
The technical implementation of this vulnerability stems from inadequate CSRF protection measures combined with insufficient output escaping of user-supplied data. When users interact with the WPBookit plugin, particularly during form submissions or data modifications, the system fails to properly validate that requests originate from legitimate sources. This lack of proper anti-CSRF token implementation allows attackers to craft malicious requests that appear to come from authenticated users. The stored XSS component emerges when the plugin processes user input without adequate sanitization, storing malicious scripts within the application's database or storage mechanisms. These stored scripts then execute whenever other users view the affected content, creating a persistent threat vector that can compromise multiple users over time.
The operational impact of this vulnerability extends far beyond simple data corruption or display issues. Attackers can leverage this flaw to hijack user sessions, steal sensitive information, modify user permissions, or even escalate privileges within the affected WordPress environment. The stored nature of the XSS attack means that victims do not need to be actively browsing the malicious content for the exploit to succeed, as the malicious scripts are executed automatically when they load pages containing the compromised data. This characteristic significantly increases the attack surface and potential damage compared to traditional reflected XSS vulnerabilities, as the malicious code remains persistent and can affect numerous users over extended periods.
Organizations and users running affected versions of WPBookit face substantial risks including unauthorized access to sensitive data, potential account takeovers, and compromise of the entire WordPress installation. The vulnerability creates an ideal environment for attackers to establish persistent backdoors, exfiltrate user credentials, or deploy additional malware through the compromised user sessions. Security professionals should consider this vulnerability in their threat modeling exercises and recognize the potential for lateral movement within networks where WordPress installations are prevalent. The issue directly maps to CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities, and CWE-79, which covers Cross-Site Scripting. From an ATT&CK framework perspective, this vulnerability enables techniques such as credential access through session hijacking and privilege escalation via malicious script execution, making it a significant concern for cybersecurity teams implementing defensive measures.
Mitigation strategies for CVE-2025-26910 require immediate action including updating to the latest available version of WPBookit where the vulnerability has been patched, implementing proper CSRF token validation mechanisms, and conducting thorough input sanitization throughout the application. Administrators should also consider implementing additional security layers such as web application firewalls, monitoring for suspicious user activity, and regular security audits of WordPress plugins. The remediation process should include comprehensive testing to ensure that the patch does not introduce regressions while also verifying that all user inputs are properly validated and escaped before storage or display. Organizations should also implement regular vulnerability scanning procedures to identify similar issues in other plugins or components of their WordPress installations, as this vulnerability demonstrates the importance of maintaining up-to-date software and proper security practices across all application components.