CVE-2026-118570 in Fasttoggle
Summary
by MITRE • 10/30/2026
Cross-Site Request Forgery (CSRF) vulnerability in Drupal Fasttoggle allows Cross Site Request Forgery. This issue affects Fasttoggle versions: from 0.0.0 to 4.1.1.
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Analysis
by VulDB Data Team • 10/30/2026
The identified security flaw resides within the Drupal module known as Fasttoggle, specifically impacting version ranges from 0.0.0 through 4.1.1. This vulnerability is classified as a Cross-Site Request Forgery, commonly abbreviated as CSRF or XSRF. In this context, the application fails to adequately verify that an incoming request originates from a legitimate user session and was intentionally initiated by that specific user, rather than being forged by a malicious third party. The core technical deficiency lies in the absence of robust anti-CSRF tokens or equivalent state-changing action validation mechanisms within the endpoints managed by the Fasttoggle module. When users interact with Drupal sites utilizing this module, their browsers automatically attach session cookies to all requests made to that domain. If an attacker can craft a malicious webpage containing a hidden form or script that triggers one of these vulnerable actions upon loading, and if the victim is currently authenticated on the target site, the browser will send the request along with valid credentials without the user's knowledge or consent.
From a technical perspective, CSRF exploits the trust that a web application has in a user's browser. The Fasttoggle module likely exposes endpoints for toggling features, settings, or states within Drupal where these actions are performed via simple HTTP methods such as GET or POST without requiring additional proof of intent. Standard security practices dictate that any state-changing operation must require a unique, unpredictable token associated with the current session and validated on the server side before execution. The lack of this validation allows an attacker to construct a URL or form submission that mimics legitimate administrative actions. Because modern browsers enforce same-origin policies for reading responses but not for sending requests, the malicious request is successfully transmitted by the victim's browser, authenticated with their active session cookies, and processed by the Drupal backend as if it were authorized.
The operational impact of this vulnerability can be severe depending on the privileges held by the targeted user account. If an administrator or a user with elevated permissions falls prey to such an attack, the attacker could potentially toggle critical features off or on, alter site configurations, change user roles, or perform other administrative tasks that compromise the integrity and availability of the Drupal installation. Even for standard users, CSRF can be used to force actions like changing email addresses, resetting passwords, or making purchases if applicable within the module's scope. This undermines the confidentiality, integrity, and availability principles of information security. Attackers often distribute these malicious links via phishing emails, social engineering tactics on forums, or embedded in seemingly harmless content on compromised websites, relying on the victim to be logged into their Drupal account at the time of interaction.
To mitigate this vulnerability, site administrators must upgrade the Fasttoggle module to a version later than 4.1.1 where these security controls have been implemented. If immediate upgrading is not feasible due to compatibility constraints or other operational reasons, temporary mitigations should be employed. These include disabling public access to affected endpoints if possible, implementing custom middleware that validates CSRF tokens for all state-changing requests, and ensuring that sensitive actions require re-authentication via password entry. Additionally, enabling the SameSite cookie attribute on session cookies can provide a layer of defense by restricting how browsers send cookies in cross-site contexts, although this should not be relied upon as the sole mitigation strategy given varying browser support levels.
This vulnerability aligns with CWE-352, which describes Cross-Site Request Forgery (CSRF), and maps to MITRE ATT&CK technique T1078, specifically relating to valid accounts being used for unauthorized actions through social engineering or automated exploitation of trust relationships. The failure to implement proper anti-forgery measures represents a fundamental oversight in web application security design, emphasizing the necessity of rigorous input validation and state verification for all mutable operations within content management systems like Drupal.