Description

Unauthenticated Broken Access Control in BEAR <= 1.2.2 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-10-06T09:17:57.430Z",
  "pubdate": "2026-10-06T09:17:57.430Z",
  "executiveSummary": "This vulnerability is classified as an Unauthenticated Broken Access Control flaw affecting BEAR versions 1.2.2 and earlier.\nThe security deficiency allows unauthenticated remote attackers to bypass authorization mechanisms, granting them unauthorized access to protected functionalities or sensitive data within the application.\nBecause the vulnerability does not require prior authentication, it poses a high risk to the confidentiality and integrity of the affected system.\nAn attacker can exploit this flaw without credentials by interacting directly with the application's exposed endpoints, effectively circumventing the intended security policy.\nThe potential impact includes unauthorized data exposure, potential administrative action execution, and the subversion of application logic, depending on the specific protected resources reachable through the bypass.",
  "technicalDetails": "The root cause of this vulnerability lies in the improper implementation of access control checks within the application's request processing pipeline for BEAR versions 1.2.2 and below.\nSpecifically, the application fails to adequately validate the session state or authentication tokens before processing sensitive requests, allowing unauthenticated users to access endpoints that should be restricted.\nThe vulnerability manifests because the authorization logic is either absent, incorrectly configured, or bypassable via crafted HTTP requests that deceive the application into treating the request as authorized.\nThe exploitation flow initiates when an unauthenticated attacker identifies a sensitive endpoint or function that is intended to be protected by authentication.\nThe attacker then sends a specially crafted HTTP request to the target URL. Because the underlying access control mechanism fails to enforce identity verification, the application treats the request as legitimate.\nSince the check is performed on the server-side, the attacker does not need any valid session identifiers or credentials to interact with the vulnerable component.\nThe vulnerable component resides within the application's routing or request handler layer, which fails to correctly invoke the required authentication middleware or authorization filters for specific paths.\nPost-exploitation, an attacker can manipulate application data, access restricted administrative features, or perform actions on behalf of other users, leading to a complete compromise of the intended security model.\nThis vulnerability is directly exploitable over the network, as it does not require local access, making it highly susceptible to automated scanning and exploitation by malicious actors.\nThe absence of robust server-side enforcement ensures that the vulnerability remains active regardless of client-side restrictions or user interface obfuscation."
}