CVE-2026-14622: Restaurant Website Auth Bypass Flaw

CVE-2026-14622 Overview

CVE-2026-14622 is a missing authentication vulnerability in the jairiidriss/restaurant-website-php-mysql open-source project. The flaw resides in the /admin/ajax_files AJAX endpoint, which fails to enforce authentication before processing requests. Unauthenticated remote attackers can invoke administrative AJAX functionality across the network. The weakness is classified as [CWE-287] Improper Authentication. A public exploit disclosure exists, and the project maintains a rolling release model, meaning no fixed version identifier is available. The maintainer was notified via a GitHub issue but has not responded as of publication.

Critical Impact
Unauthenticated remote attackers can reach administrative AJAX handlers under /admin/ajax_files, bypassing intended access controls and manipulating restaurant management data.

Affected Products

jairiidriss/restaurant-website-php-mysql up to commit 521428b5b612449df0cf4a5d15ee40cba67f3d35
AJAX Endpoint component (/admin/ajax_files)
All rolling release deployments prior to a maintainer fix

Discovery Timeline

2026-07-04 - CVE-2026-14622 published to NVD
2026-07-06 - Last updated in NVD database

Technical Details for CVE-2026-14622

Vulnerability Analysis

The vulnerability affects the administrative AJAX handler at /admin/ajax_files within the restaurant-website-php-mysql PHP application. Administrative endpoints must validate an authenticated session before performing privileged operations. In this project, the AJAX handler processes requests without verifying that the caller holds a valid administrative session. Any network-reachable client can therefore invoke the endpoint directly. Because the affected files service administrative workflows, an attacker can influence backend data used by the restaurant website. The maintainer uses a rolling release strategy, so no version number identifies affected builds beyond the commit hash 521428b5b612449df0cf4a5d15ee40cba67f3d35.

Root Cause

The root cause is missing authentication enforcement on an administrative AJAX endpoint [CWE-287]. Server-side code under /admin/ajax_files executes sensitive actions without checking session state, role membership, or CSRF tokens. Access control decisions are effectively delegated to the frontend, which an attacker can bypass by issuing direct HTTP requests.

Attack Vector

The attack vector is network-based and requires no privileges or user interaction. An attacker sends crafted HTTP requests directly to /admin/ajax_files on a reachable deployment. Because authentication is absent, the request executes with the same effect as an authenticated administrator invoking the same handler. Public disclosure of the flaw increases the likelihood of opportunistic scanning against exposed instances.

No verified exploit code is included here. See the GitHub Issue Tracker and the VulDB CVE Report for additional technical detail.

Detection Methods for CVE-2026-14622

Indicators of Compromise

Unauthenticated HTTP requests to /admin/ajax_files from external IP addresses in web server access logs
Requests to administrative AJAX paths lacking a valid session cookie or Referer header from the admin console
Unexpected modifications to restaurant records, menu items, or user data outside normal administrator activity windows
Repeated probing patterns targeting /admin/ paths from a single source IP

Detection Strategies

Enable web server access logging on all URIs beginning with /admin/ and alert on responses returning 200 for unauthenticated sessions
Deploy a Web Application Firewall (WAF) rule that requires a valid authentication cookie for requests to /admin/ajax_files
Compare application audit trails against web server logs to identify AJAX actions with no associated administrator login event

Monitoring Recommendations

Monitor for spikes in POST or GET traffic to administrative endpoints from non-corporate IP ranges
Track database writes triggered by the AJAX endpoint and correlate them with authenticated admin sessions
Alert on any successful HTTP 200 response from /admin/ajax_files when the request lacks session credentials

How to Mitigate CVE-2026-14622

Immediate Actions Required

Restrict access to /admin/ paths at the reverse proxy or firewall level, permitting only trusted administrator IP ranges
Place the /admin/ajax_files endpoint behind HTTP basic authentication or a VPN until a code-level fix is available
Audit application logs for prior unauthenticated access to the endpoint and review affected records for tampering
Remove public exposure of the application if it is used for demonstration or learning rather than production

Patch Information

No vendor patch is available. The project maintainer was informed through a GitHub issue but has not responded. Because the repository uses a rolling release model, no fixed version identifier exists. Monitor the GitHub Project Repository for updates and the GitHub Issue Tracker for maintainer response.

Workarounds

Add a server-side session check at the top of every script under /admin/ajax_files that redirects or returns HTTP 401 when no admin session is present
Enforce authentication centrally through a front controller or .htaccess rule requiring HTTP authentication for the /admin/ directory
Implement CSRF tokens for all state-changing AJAX operations to reduce exploitability from cross-origin requests
Disable the affected endpoint entirely if it is not required for production functionality

bash

# Example Apache .htaccess restricting /admin/ajax_files to authenticated users
<Directory "/var/www/html/admin/ajax_files">
    AuthType Basic
    AuthName "Restricted Admin Area"
    AuthUserFile /etc/apache2/.htpasswd
    Require valid-user
    Order deny,allow
    Deny from all
    Allow from 10.0.0.0/8
</Directory>