CVE-2024-10302 in API Control Plane
Summary
by MITRE • 08/06/2026
The user self-signup flow in multiple WSO2 products fails to adequately validate user-supplied input. This weakness allows arbitrary unvalidated data to be included within user claims, which are then used by downstream processes.
Allowing unvalidated input into user claims can lead to various security risks. Malicious or malformed data injected during signup could be processed by other parts of the application, potentially enabling attacks such as content manipulation, redirection, user interface inconsistencies, unauthorized actions, and data exposure. The actual impact depends on how the compromised data is consumed and the privileges associated with the affected users.
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Analysis
by VulDB Data Team • 08/06/2026
The vulnerability described represents a critical input validation weakness in WSO2 products' user registration mechanisms that directly relates to CWE-20, which encompasses improper input validation issues. This flaw exists within the self-signup functionality across multiple WSO2 platforms, creating an attack surface where user-supplied data bypasses proper sanitization and validation processes. The fundamental technical issue stems from insufficient data validation at the point of user entry, allowing malicious actors to inject malformed or unexpected data that propagates through the system's claim processing mechanisms.
The operational impact of this vulnerability extends beyond simple data integrity concerns into broader security implications that align with ATT&CK technique T1078 for valid accounts and T1566 for credential access. When user claims contain unvalidated data, downstream processes that consume these claims become susceptible to various attack vectors including but not limited to server-side request forgery attacks, cross-site scripting exploitation, and injection vulnerabilities. The compromised data can manipulate application behavior in ways that violate the principle of least privilege, potentially enabling attackers to escalate privileges or access unauthorized resources within the WSO2 ecosystem.
The security implications of this vulnerability are particularly concerning given that WSO2 products typically serve as identity and access management platforms where user claims often drive authorization decisions and access controls. Attackers could exploit this weakness by injecting malicious data into user registration forms, which would then be processed by downstream systems such as attribute mappers, role assignment mechanisms, or API gateway configurations. This creates opportunities for privilege escalation attacks where compromised user accounts could gain elevated permissions through manipulated claim values that are not properly validated before being consumed by access control systems.
Organizations implementing WSO2 products should prioritize immediate remediation of this vulnerability through comprehensive input validation mechanisms and proper data sanitization protocols. The recommended mitigations include implementing strict validation rules for all user-supplied data within the signup flow, establishing robust claim processing pipelines that validate incoming data against expected formats and values, and implementing comprehensive logging and monitoring to detect anomalous claim data patterns. Additionally, organizations should consider implementing automated data validation checks that align with OWASP Top Ten security principles and ensure proper separation of concerns between user input handling and downstream system processing to prevent cascading security issues throughout the platform architecture.
This vulnerability demonstrates how seemingly innocuous input validation gaps can create significant security risks in identity management systems where user claims form the foundation for access control decisions. The attack surface extends beyond traditional web application vulnerabilities into the core identity management infrastructure, making this issue particularly critical for organizations that rely on WSO2 products for their authentication and authorization needs. Proper implementation of defense-in-depth strategies including input validation, data sanitization, and continuous monitoring will be essential to protect against exploitation attempts targeting these specific weaknesses in user registration flows.