Description

A flaw has been found in subhajitkhan online-clinic-management-system up to e9ee77a8827a1446220fa07ee693dc4d9a29a578. Affected by this vulnerability is the function session_start of the file adminappview.php. Executing a manipulation of the argument adminmail can lead to authorization bypass. The attack may be launched remotely. The exploit has been published and may be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The project was informed of the problem early through an issue report but has not responded yet.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-09-15T04:18:20.010Z",
  "pubdate": "2026-09-15T04:18:20.010Z",
  "executiveSummary": "A critical authorization bypass vulnerability exists in the subhajitkhan online-clinic-management-system, specifically within the adminappview.php file.\nThe flaw stems from improper handling of the adminmail argument during session initialization, which can be leveraged by remote, unauthenticated attackers.\nBy manipulating input to the session_start function, an attacker can bypass authentication mechanisms to gain unauthorized administrative access to the application.\nGiven the nature of the application as an online-clinic-management-system, unauthorized access poses a severe risk to the confidentiality, integrity, and availability of sensitive patient and administrative data.\nThe vulnerability is remotely exploitable and proof-of-concept exploits have been publicly disclosed, increasing the likelihood of active exploitation.\nAs the project utilizes a rolling release model and has not responded to initial vulnerability disclosures, users remain at constant risk due to the lack of an official vendor-supplied patch.",
  "technicalDetails": "The vulnerability is located in adminappview.php within the session_start function, which is responsible for managing authentication sessions for the administrative interface.\nThe root cause is an insecure session management implementation where the application logic improperly validates or relies on the user-supplied adminmail argument to establish the administrative session state.\nInstead of verifying the user's credentials against a secure backend store before initializing the session, the application trusts the provided argument as sufficient proof of identity.\nAn attacker can exploit this by sending a crafted HTTP request to adminappview.php where the adminmail parameter is manipulated. By providing a valid administrator email address or an arbitrary value that the backend logic incorrectly interprets as 'authenticated', the attacker forces the session_start function to register a valid administrative session.\nThe attack flow proceeds as follows: First, the attacker identifies the endpoint adminappview.php. Second, the attacker constructs an HTTP request (typically a GET or POST) targeting this file. Third, the attacker appends the adminmail argument to the request, injecting a value designed to satisfy the logic check within session_start. Fourth, the server-side code processes the manipulated input without performing necessary password verification or secure session token validation.\nUpon successful execution, the application sets the session variables identifying the requester as an authenticated administrator. This grants the attacker full access to administrative functionalities, including but not limited to, viewing sensitive medical records, modifying system configurations, and managing user accounts.\nThe vulnerability requires no prior authentication, as the flaw resides in the authentication initiation phase itself. The attack is fully network-accessible, meaning any remote attacker capable of reaching the web server hosting the online-clinic-management-system can perform the exploit.\nPost-exploitation, the impact is comprehensive. The attacker gains the same privilege level as the administrator, enabling unauthorized data access and potential persistent system compromise via the administrative control panel. The absence of vendor response means this vulnerability remains unpatched in the current codebase, necessitating immediate manual intervention by system administrators to restrict access to the affected file."
}