CVE-2026-118560 in Commerce Stripe
Summary
by MITRE • 10/30/2026
Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Commerce Stripe allows Cross-Site Scripting (XSS). This issue affects Commerce Stripe versions: from 2.0.0 to 2.2.3.
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Analysis
by VulDB Data Team • 10/30/2026
The identified security flaw represents a classic instance of Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting or XSS within the Drupal ecosystem. This vulnerability specifically impacts Commerce Stripe modules ranging from version 2.0.0 through 2.2.3. The core technical deficiency lies in the application's failure to adequately sanitize user-supplied input before it is rendered into HTML output for web browsers. When a system processes data without proper validation or encoding, malicious actors can inject executable scripts that run within the context of the victim's browser session. In this specific case, the flaw allows an attacker to bypass standard security controls such as Content Security Policy and same-origin policies by injecting client-side code into pages generated dynamically by the Drupal Commerce Stripe integration.
From a technical perspective, the vulnerability likely stems from insufficient output encoding or improper handling of data passed through API endpoints associated with payment processing workflows. When users interact with forms or submit transactional data that is subsequently displayed back to them or other administrators without rigorous sanitization, the browser interprets embedded script tags as legitimate code rather than static text. This behavior enables the execution of arbitrary JavaScript in the context of the trusted domain hosting the Drupal site. The attack vector typically involves crafting a malicious payload containing scripts designed to steal session cookies, capture keystrokes, perform actions on behalf of authenticated users, or redirect victims to phishing sites. Because the vulnerability exists within a widely used e-commerce module, the potential for exploitation is significant given the high volume of traffic and sensitive data processed through these interfaces.
The operational impact of this vulnerability extends beyond simple defacement or minor annoyances. Successful exploitation can lead to severe compromise of user confidentiality and integrity. Attackers may steal session tokens associated with administrative accounts, thereby gaining unauthorized access to backend systems where they could manipulate product listings, alter pricing structures, or exfiltrate customer payment information stored in the database. Furthermore, since Commerce Stripe handles financial transactions, an XSS attack could facilitate man-in-the-browser attacks that intercept and modify transaction details before submission, leading directly to financial fraud. The trust relationship between the user's browser and the Drupal site is fundamentally broken when arbitrary scripts are executed, undermining the security posture of any organization relying on this module for online commerce operations.
Industry standards classify this flaw under CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting). This categorization highlights the failure to neutralize special characters that have meaning in HTML contexts before rendering them. Additionally, from a tactical standpoint aligned with MITRE ATT&CK frameworks, this vulnerability facilitates techniques such as Client-side Script Injection and potentially Credential Access via Browser Session Hijacking if session cookies are accessible through JavaScript APIs like document.cookie. The exploitation path often involves social engineering to lure victims into clicking malicious links or submitting crafted forms that trigger the injection point within the Commerce Stripe interface.
Mitigation strategies must prioritize immediate remediation by upgrading the Drupal Commerce Stripe module to a version later than 2.2.3, where these input handling issues have been addressed through improved sanitization routines and strict output encoding practices. Until an upgrade is feasible, administrators should implement web application firewall rules that detect and block common XSS payloads targeting known vulnerable endpoints associated with this module. Input validation mechanisms should be reinforced to ensure that only expected data types are accepted from user inputs. Furthermore, enabling Content Security Policy headers can help mitigate the impact of successful injections by restricting the sources from which scripts can be loaded or executed. Regular security audits and code reviews focusing on output encoding practices within custom modules will further reduce the risk surface for similar vulnerabilities in the future.