CVE-2025-24562 in KBucket Plugin
Summary
by MITRE • 01/24/2025
Cross-Site Request Forgery (CSRF) vulnerability in Optimal Access Inc. KBucket allows Stored XSS. This issue affects KBucket: from n/a through 4.1.6.
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Analysis
by VulDB Data Team • 02/09/2025
This cross-site request forgery vulnerability in KBucket represents a critical security flaw that enables attackers to execute stored cross-site scripting attacks through manipulated requests. The vulnerability exists within the application's handling of user input and request processing mechanisms, creating a pathway for malicious actors to inject persistent script code into the application's database or storage systems. The flaw specifically impacts versions ranging from an unspecified initial state through 4.1.6, indicating a long-standing issue that has persisted across multiple releases. This type of vulnerability falls under CWE-352, which categorizes cross-site request forgery flaws as a fundamental web application security weakness that undermines the integrity of user sessions and application data. The stored XSS component amplifies the impact by allowing malicious scripts to persist and execute against other users who interact with the compromised data.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with the ability to manipulate the application's content and user interactions in persistent ways. When users view pages containing the maliciously stored content, the injected scripts execute within their browser context, potentially leading to account takeovers, data exfiltration, or further exploitation of the victim's session. The vulnerability's presence in KBucket suggests that the application lacks proper anti-CSRF token validation mechanisms or insufficient input sanitization processes that would normally prevent such attacks from succeeding. Attackers can leverage this flaw by crafting malicious requests that bypass the application's security controls, ultimately storing harmful payloads that execute whenever legitimate users access affected pages.
Security professionals should recognize this vulnerability as a prime example of how CSRF flaws can be weaponized to create persistent threats within web applications. The issue demonstrates the importance of implementing comprehensive security controls that address both authentication and data integrity concerns. Organizations using KBucket versions within the affected range must urgently assess their current security posture and implement appropriate mitigations. The vulnerability's classification aligns with ATT&CK technique T1566.001, which covers the use of credential stuffing and session hijacking techniques that can be enabled by such flaws. Proper remediation requires the implementation of robust anti-CSRF token mechanisms, input validation, and output encoding controls to prevent malicious data from being stored or executed within the application environment.
The persistence of this vulnerability across multiple versions indicates a systemic issue in the application's security architecture and development practices. Organizations should conduct thorough security assessments of their KBucket implementations to identify potential exploitation vectors and implement immediate mitigations including the deployment of CSRF protection tokens, proper request validation, and regular security updates. The stored XSS component specifically requires attention to input sanitization and output encoding practices to prevent malicious scripts from being stored in the application's database. This vulnerability serves as a reminder of the critical importance of maintaining up-to-date security controls and implementing comprehensive testing procedures to identify and remediate such flaws before they can be exploited in real-world scenarios.