CVE-2026-76048 in Simple Online Food Ordering System
Summary
by MITRE • 08/19/2026
A flaw has been found in SourceCodester Simple Online Food Ordering System 1.0. The impacted element is an unknown function of the file /admin/ajax.php?action=login. Executing a manipulation of the argument Username can lead to sql injection. The attack may be performed from remote. The exploit has been published and may be used.
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Analysis
by VulDB Data Team • 08/19/2026
The vulnerability identified in SourceCodester Simple Online Food Ordering System version 1.0 represents a critical security flaw within its administrative interface, specifically targeting the authentication mechanism located at /admin/ajax.php?action=login. This system, often utilized as an educational template or for small-scale deployments due to its simplicity and ease of setup, lacks robust input validation in its backend processing logic. The core issue resides in how the application handles user-supplied data during the login process. When a remote attacker interacts with this endpoint by submitting specially crafted credentials through the Username parameter, they can inject malicious SQL code into the database query executed by the server. This flaw allows an adversary to bypass authentication controls entirely or manipulate backend data without authorization, as the system fails to properly sanitize or parameterize user inputs before incorporating them into Structured Query Language statements.
From a technical perspective, this vulnerability is classified under CWE-89, which denotes Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The attack vector is remote and network-accessible, meaning that no prior authentication or local access is required to exploit the flaw. By manipulating the Username field with specific syntactic structures such as single quotes followed by logical operators like OR 1=1, attackers can alter the intended logic of the database query. This typically results in the application returning a successful login response regardless of whether the provided password is correct, effectively granting unauthorized administrative access to the system. The presence of published exploits further exacerbates the risk, as automated scanning tools and malicious actors can readily leverage these scripts to compromise vulnerable instances across the internet with minimal effort.
The operational impact of this vulnerability extends beyond simple account takeover. Once an attacker gains administrative privileges through SQL injection, they can perform a wide range of destructive actions within the context of the application's database permissions. This includes exfiltrating sensitive customer data such as names, addresses, and payment information stored in the backend database, modifying order details to disrupt business operations, or inserting malicious scripts that could lead to cross-site scripting attacks against legitimate users. In severe cases, if the underlying database service runs with elevated privileges on the host operating system, an attacker might escalate their access to execute arbitrary commands on the server itself, leading to a complete compromise of the infrastructure hosting the food ordering system.
To mitigate this vulnerability, immediate remediation is required for any instances running version 1.0 or earlier affected builds. The primary fix involves refactoring the backend code in /admin/ajax.php to utilize prepared statements with parameterized queries instead of concatenating user input directly into SQL strings. This ensures that data is treated strictly as values rather than executable code, neutralizing injection attempts regardless of their content. Additionally, implementing strict input validation on both client and server sides can provide defense-in-depth by rejecting unexpected characters or formats in the username field. For organizations unable to patch immediately due to legacy constraints, deploying a Web Application Firewall with rules specifically tuned to detect SQL injection patterns offers temporary protection against exploitation until permanent code fixes are applied. It is also advisable to disable direct access to administrative endpoints from untrusted networks and enforce multi-factor authentication where possible to add layers of security beyond password-based credentials.