CVE-2026-9726 in AlternativeCommerce
Summary
by MITRE • 07/10/2026
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal AlternativeCommerce (Basket) allows Object Injection. This issue affects Drupal AlternativeCommerce (Basket) versions: from 0.0.0 to 2.1.17.
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Analysis
by VulDB Data Team • 07/10/2026
This vulnerability represents a critical improper controlled modification of dynamically-determined object attributes flaw that specifically impacts the Drupal AlternativeCommerce module's Basket component. The issue stems from insufficient validation and sanitization of user-supplied data that influences object attribute modifications during runtime execution. When attackers can manipulate input parameters that determine object properties or methods, they gain the ability to inject malicious objects into the application's execution flow. This particular vulnerability affects versions ranging from 0.0.0 through 2.1.17, indicating a prolonged period where the module remained susceptible to this class of attack. The flaw aligns with CWE-915 which specifically addresses improper control of dynamically-determined object attributes and falls under the broader category of object injection vulnerabilities that have been extensively documented in cybersecurity literature. The ATT&CK framework categorizes this as a code injection technique where adversaries manipulate application logic through controlled modification of object properties.
The technical exploitation of this vulnerability occurs when user input flows directly into object attribute assignment without proper validation or sanitization mechanisms. In the context of Drupal AlternativeCommerce, attackers can craft malicious input that modifies basket object attributes in ways that enable arbitrary code execution or data manipulation. The dynamically-determined nature of the object attributes means that the vulnerability operates at runtime rather than being a static code issue, making it particularly challenging to detect through traditional static analysis methods. Attackers typically leverage this weakness by injecting serialized objects or manipulating parameter values that control how the basket component processes user requests. This creates a pathway for attackers to escalate privileges, bypass access controls, or execute unauthorized operations within the commerce environment.
The operational impact of this vulnerability extends beyond simple data manipulation to potentially compromise entire commerce transactions and customer information. When an attacker successfully exploits this issue, they can modify shopping cart contents, alter product pricing, manipulate order processing, or even gain administrative access to the system. The consequences are particularly severe in e-commerce environments where financial transactions occur, as attackers could potentially redirect payments or manipulate order fulfillment processes. Organizations using vulnerable versions of Drupal AlternativeCommerce face significant risk of data breaches, financial loss, and regulatory compliance violations that could result in substantial legal and reputational damage.
Mitigation strategies for this vulnerability require immediate action to upgrade to patched versions of the Drupal AlternativeCommerce module, with version 2.1.18 and later recommended as secure. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied data before it influences object attribute assignments. The implementation of proper object serialization controls and strict type checking can prevent malicious objects from being injected into the application's runtime environment. Security teams must also conduct thorough code reviews focusing on dynamic object attribute handling and implement automated scanning tools to detect similar patterns throughout the application codebase. Additional protective measures include network segmentation, monitoring for unusual transaction patterns, and implementing robust access controls that limit the impact of potential exploitation attempts. Regular security assessments and vulnerability management processes should be enhanced to identify and remediate similar weaknesses in other components of the Drupal ecosystem.