Description

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-359: Exposure of Private Personal Information to an Unauthorized Actor

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.1",
  "pubDate": "2026-08-13T10:17:15.380Z",
  "pubdate": "2026-08-13T10:17:15.380Z",
  "executiveSummary": "The identified security issue encompasses CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) and CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor). These vulnerabilities involve the unintentional leakage or exposure of sensitive system data and private personal information to unauthorized entities.\nThe primary impact of these flaws includes the compromise of confidentiality, potential regulatory compliance violations, and the unauthorized access to restricted data assets. While specific product names, versions, and file paths are not explicitly provided in the input, vulnerabilities classified under CWE-200 and CWE-359 typically affect web applications, APIs, databases, or misconfigured servers that fail to properly enforce access controls or data redaction mechanisms.\nThe risk implications are severe, as unauthorized actors can harvest sensitive internal data or Personally Identifiable Information (PII) without necessarily requiring advanced exploitation techniques. Depending on the specific implementation flaw, attackers may leverage direct browsing, insecure API endpoints, or unauthenticated requests to retrieve the exposed data payloads.\nSuccessful exploitation generally requires network access to the vulnerable component and the ability to interact with endpoints or interfaces that inadvertently return confidential data structures in their responses. Remediation requires rigorous access control enforcement, data sanitization, and the implementation of the principle of least privilege across all data-handling routines.",
  "technicalDetails": "The root cause of vulnerabilities categorized under CWE-200 and CWE-359 stems from inadequate access controls, improper authorization checks, or excessive data exposure within application responses and data storage mechanisms. When software components process requests containing sensitive system information or private personal information, they frequently fail to strip non-essential attributes or restrict access solely to authenticated and authorized principals.\nFrom an exploitation perspective, attackers target endpoints, logging mechanisms, error-handling routines, or configuration interfaces that leak internal states, database records, session identifiers, or PII. The attack flow typically proceeds as follows: First, the adversary identifies a vulnerable component or endpoint through reconnaissance or automated scanning. Second, the attacker issues a specially crafted HTTP request or interacts directly with the exposed interface, bypassing intended logical boundaries due to absent or flawed authorization verifications. Third, the application processes the request and returns a payload containing raw data structures, database objects, or unmasked personal attributes.\nVulnerable components often include API controllers that serialize entire database models rather than utilizing Data Transfer Objects (DTOs), or verbose error-handling routines that return stack traces and internal configuration details to the client. Authentication and privilege requirements vary depending on the specific attack surface; however, these vulnerabilities frequently manifest in scenarios where unauthenticated or low-privilege actors can access functionality intended exclusively for administrative or high-privilege entities.\nNetwork exposure is typically broad, affecting externally facing web applications or internal services lacking adequate network segmentation. The post-exploitation impact includes the aggregation of sensitive data, identity theft vectors derived from exposed PII, reconnaissance enablement for subsequent attacks, and potential compromise of downstream systems via leaked credentials or internal network topologies."
}