CVE-2026-15082 in Siteimprove Analytics
Summary
by MITRE • 07/11/2026
Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Siteimprove Analytics allows Cross-Site Scripting (XSS). This issue affects Siteimprove Analytics versions: from 0.0.0 to 2.0.1.
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Analysis
by VulDB Data Team • 07/11/2026
This cross-site scripting vulnerability originates from inadequate input validation within the Drupal Siteimprove Analytics module, creating a persistent security weakness that enables malicious actors to inject arbitrary javascript code into web pages. The flaw occurs during the web page generation process where user-supplied data is not properly sanitized before being rendered in the browser context, allowing attackers to execute malicious scripts against unsuspecting users who visit affected pages. The vulnerability is classified as CWE-79 - Improper Neutralization of Input During Web Page Generation, which represents one of the most prevalent web application security risks identified by the CWE organization. This specific implementation flaw affects all versions from 0.0.0 through 2.0.1, indicating a long-standing issue that was not adequately addressed during the module's development lifecycle.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with opportunities to perform session hijacking, deface websites, steal sensitive user information, or redirect users to malicious domains. When exploited, the XSS attack can compromise user authentication tokens, enable unauthorized access to user accounts, and facilitate more sophisticated attacks such as credential theft or data exfiltration. The vulnerability operates at the client-side execution level, making it particularly dangerous because it leverages the trust relationship between the web application and the user's browser. According to ATT&CK framework category T1059.001 - Command and Scripting Interpreter: JavaScript, this vulnerability directly enables adversaries to execute malicious javascript code within the victim's browser context.
The technical exploitation requires minimal prerequisites as attackers can simply inject malicious payloads through input fields or parameters that are subsequently processed by the vulnerable module. The attack vector typically involves embedding javascript code within HTML tags or event handlers that get executed when the affected page loads, making it particularly effective in scenarios where user-generated content is displayed without proper sanitization. Organizations running affected versions of Siteimprove Analytics face significant risk exposure since the vulnerability can be exploited through various attack surfaces including form inputs, URL parameters, or even administrative interfaces if the module is configured with insufficient input validation controls.
Mitigation strategies should focus on immediate patching of the affected module to version 2.0.2 or later where the XSS vulnerability has been addressed through proper input sanitization and output encoding mechanisms. System administrators must also implement additional defensive measures including content security policy headers, regular security assessments of web applications, and comprehensive input validation routines that follow OWASP secure coding practices. The implementation of automatic XSS detection tools and web application firewalls can provide additional layers of protection while the organization maintains a robust security monitoring posture to detect potential exploitation attempts. Organizations should also consider conducting thorough penetration testing exercises to identify similar vulnerabilities in other modules or custom code implementations that may present comparable security risks.