CVE-2026-56286 in Capgo
Summary
by MITRE • 07/01/2026
Capgo before 12.128.2 contains an authentication bypass vulnerability in the account deletion endpoint that allows deletion without password re-authentication or secondary verification. Attackers can delete user accounts via session hijacking, CSRF attacks, or parameter tampering, resulting in unauthorized account deletion, data loss, and denial-of-service.
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Analysis
by VulDB Data Team • 07/01/2026
The vulnerability identified in Capgo versions prior to 12.128.2 represents a critical authentication bypass flaw that fundamentally undermines the security of user account management within the application. This weakness resides specifically within the account deletion endpoint where proper authentication mechanisms have been bypassed, allowing malicious actors to perform destructive operations without the required password re-authentication or secondary verification processes that should normally be enforced. The vulnerability stems from inadequate input validation and session management controls that fail to properly verify user identity before executing account termination procedures.
The technical implementation of this flaw enables multiple attack vectors that collectively amplify the risk exposure for affected systems. Session hijacking attacks can exploit weak session management practices to gain unauthorized access to user sessions, while cross-site request forgery techniques can trick authenticated users into performing account deletion actions without their knowledge or consent. Parameter tampering methods further compound the issue by allowing attackers to manipulate API endpoints directly through manipulated request parameters that bypass normal authentication checks. These attack vectors align with common patterns identified in the CWE database under category 305, which specifically addresses authentication bypass vulnerabilities.
The operational impact of this vulnerability extends beyond simple account deletion to encompass broader security implications including potential data loss, service disruption, and user trust degradation. When attackers successfully exploit this vulnerability, they can permanently remove user accounts without proper authorization, leading to irreversible consequences for affected individuals and organizations. The denial-of-service aspect of this vulnerability becomes particularly concerning when considering that legitimate users may find themselves unable to access their accounts or perform necessary administrative functions due to the compromised security posture.
Organizations implementing Capgo solutions must prioritize immediate remediation efforts to address this authentication bypass vulnerability through comprehensive security controls. The recommended mitigations include implementing robust session management with proper token rotation and expiration mechanisms, enforcing multi-factor authentication for critical account operations including deletion, and establishing strict input validation and parameter sanitization processes. Additionally, organizations should implement proper access control measures that ensure only authenticated and authorized users can execute account termination procedures, while also deploying monitoring systems to detect unusual account deletion patterns that may indicate exploitation attempts.
This vulnerability demonstrates the critical importance of maintaining proper authentication controls for sensitive operations within web applications, particularly those involving user account management and data integrity. The absence of secondary verification mechanisms creates a dangerous gap in security architecture that directly violates fundamental principles of secure software development practices. Security professionals should consider this vulnerability in the context of broader attack surface reduction strategies and ensure that similar authentication bypass issues are identified and addressed across all application components through comprehensive security testing and code review processes. The implementation of defense-in-depth measures including web application firewalls, rate limiting controls, and detailed audit logging becomes essential for mitigating exploitation risks associated with such authentication flaws.
The security implications of this vulnerability extend into the realm of compliance requirements and industry standards where proper account management and authentication controls are mandatory for protecting sensitive user data. Organizations must ensure that their security implementations meet established frameworks including those referenced in NIST cybersecurity guidelines and ISO 27001 standards, which emphasize the critical nature of maintaining proper access controls and authentication mechanisms for all user-facing application functions.