Description

Missing Authorization vulnerability in Menulux Software Inc. Menulux Portal allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Menulux Portal: before 20260903211448.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "4.3",
  "pubDate": "2026-09-04T12:17:18.203Z",
  "pubdate": "2026-09-04T12:17:18.203Z",
  "executiveSummary": "This vulnerability pertains to a Missing Authorization flaw within the Menulux Portal software, classified under the category of Accessing Functionality Not Properly Constrained by ACLs.\nThe vulnerability exists because the application fails to enforce appropriate Access Control Lists (ACLs) for specific internal functions, allowing unauthorized users to execute operations beyond their assigned permission levels.\nThe affected product is Menulux Portal, specifically all versions released prior to 20260903211448.\nThe risk implication is significant, as a remote, unauthenticated, or low-privileged attacker can potentially bypass security controls to interact with sensitive administrative or functional endpoints.\nSuccessful exploitation grants the attacker capabilities equivalent to authorized users or administrators, depending on the specific function exposed.\nNo complex exploitation requirements are noted beyond the ability to interact with the target system's API or web interface, making this a critical security concern requiring immediate attention through vendor-supplied updates.",
  "technicalDetails": "The core issue stems from an authorization bypass mechanism where internal application routes or functional APIs are exposed without adequate validation of the requester's identity or privilege set.\nIn Menulux Portal versions prior to 20260903211448, the architectural flaw lies in the implementation of the request handling layer, which fails to verify permissions at the controller or middleware level before invoking the underlying logic.\nThe attack flow typically involves an adversary identifying the target endpoint through web application reconnaissance or intercepted traffic. Once an endpoint is identified, the attacker crafts a direct HTTP request to the specific functionality that lacks ACL enforcement.\nBecause the server-side code does not perform a secondary check against the session's security context or ACL mapping, the request is processed as if it were authorized, bypassing the intended security constraints.\nThis behavior can lead to unauthorized data retrieval, modification, or the execution of privileged administrative tasks. The exposure is not limited to a single feature but suggests a systemic weakness in the application's access control architecture.\nFrom an exploitation perspective, the attacker does not require a valid session or specialized exploit payloads; instead, they rely on the application's failure to enforce object-level or function-level access control. Once the request reaches the vulnerable component, the function is executed in the context of the application's privileges.\nThe post-exploitation impact includes full system compromise, unauthorized configuration changes, potential data exfiltration of sensitive organizational records, or service disruption depending on the nature of the functionality constrained by the broken ACL.\nThis vulnerability is particularly dangerous because it often does not leave standard application-level logs indicating an authorization failure, as the system perceives the unauthorized request as a valid invocation of a routine function."
}