CVE-2026-10876: Ship Ferry Ticket System Auth Bypass

CVE-2026-10876 Overview

CVE-2026-10876 is a missing authorization vulnerability in SourceCodester Ship Ferry Ticket Reservation System 1.0. The flaw affects an unspecified function within the /admin/ directory, where the page parameter is processed without proper authorization checks. An authenticated remote attacker with low privileges can manipulate the page argument to access administrative functionality reserved for higher-privileged roles. The weakness maps to [CWE-266: Incorrect Privilege Assignment]. A public exploit has been disclosed, increasing the likelihood of opportunistic abuse against exposed deployments.

Critical Impact
Authenticated attackers can reach administrative pages of the Ship Ferry Ticket Reservation System without holding the corresponding role, exposing reservation data and administrative actions.

Affected Products

SourceCodester Ship Ferry Ticket Reservation System 1.0
Deployments exposing the /admin/ endpoint to untrusted networks
Installations that have not enforced server-side role validation on page routing

Discovery Timeline

2026-06-05 - CVE-2026-10876 published to the National Vulnerability Database (NVD)
2026-06-05 - Last updated in NVD database

Technical Details for CVE-2026-10876

Vulnerability Analysis

The Ship Ferry Ticket Reservation System routes administrative views through the /admin/ entry point using a page query parameter. The application loads the requested page based on the parameter value but fails to verify that the authenticated session holds an administrative role. A user with any valid low-privilege session can therefore request administrative pages directly by supplying the corresponding page value. The defect is a broken access control issue rather than an injection or memory safety problem, and it affects authorization logic at the request-handling layer.

Root Cause

The root cause is missing server-side authorization enforcement on the page dispatcher inside /admin/. Authentication establishes a session, but the application does not re-check the session role before rendering administrative content. As classified under [CWE-266], the privilege assigned to the session does not match the privilege required by the requested resource.

Attack Vector

Exploitation requires network access to the application and a low-privilege account. The attacker issues a crafted HTTP request to /admin/?page=<restricted_view> and receives administrative functionality without further checks. No user interaction is required, and the exploit has been published, lowering the technical barrier. Public references describe the request pattern and impacted views in detail.

No verified proof-of-concept code is reproduced here. Technical write-ups are available in the Medium analysis of the missing authorization flaw and the VulDB CVE-2026-10876 entry.

Detection Methods for CVE-2026-10876

Indicators of Compromise

HTTP requests to /admin/?page= originating from sessions tied to non-administrative user IDs.
Unexpected access patterns where standard user accounts retrieve administrative views or perform admin actions.
Web server logs showing low-privileged sessions enumerating multiple page values under /admin/.

Detection Strategies

Correlate authenticated session role with the URI path and page parameter at the web application firewall (WAF) or reverse proxy.
Alert on any request to /admin/ where the session role attribute is not admin.
Review application access logs for sequential page parameter values, which indicate enumeration of administrative routes.

Monitoring Recommendations

Forward web server and application logs to a centralized log platform for retention and correlation.
Track baseline behavior of administrative endpoints and alert on access from new or low-privileged accounts.
Monitor for outbound data transfers following access to /admin/ views by non-admin users.

How to Mitigate CVE-2026-10876

Immediate Actions Required

Restrict access to /admin/ at the network layer to administrative IP ranges or VPN-only access until a code fix is in place.
Enforce a server-side authorization check that validates the session role before rendering any page value under /admin/.
Audit existing accounts and revoke unnecessary low-privilege sessions that could be used to test the flaw.

Patch Information

No official vendor patch is referenced in the NVD entry for CVE-2026-10876 at the time of publication. Administrators should monitor the SourceCodester project page and the VulDB advisory for vulnerability #368366 for fix availability. Until a patch is published, apply the workarounds below.

Workarounds

Add an authorization middleware in front of /admin/ that rejects requests when the session role is not admin, returning HTTP 403.
Deploy WAF rules that block requests to /admin/ lacking a valid administrative session cookie or token.
Remove or rename the /admin/ directory in production until proper role-based access control is implemented.

bash

# Example nginx restriction for the /admin/ path
location /admin/ {
    allow 10.0.0.0/24;   # administrative subnet
    deny all;
    proxy_pass http://app_backend;
}