CVE-2026-86518 in Student Crud Operation
Summary
by MITRE • 09/08/2026
A vulnerability has been found in code-projects Student Crud Operation 1.0. This affects an unknown function of the file /edit.php. The manipulation of the argument ID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 09/08/2026
The vulnerability identified in code-projects Student Crud Operation version 1.0 represents a critical security flaw within the application's data handling mechanisms, specifically located in the edit.php file. This software is typically utilized as an educational or demonstration project for building basic database-driven web applications using PHP and MySQL. The core issue stems from improper input validation and sanitization practices when processing user-supplied data. Specifically, the function responsible for editing student records fails to properly sanitize the ID argument passed via HTTP requests before incorporating it into SQL queries. This lack of defensive coding allows an attacker to inject malicious SQL code directly into the database backend, bypassing intended application logic and gaining unauthorized access to or manipulation of underlying data structures.
From a technical perspective, this vulnerability is classified as SQL Injection, which corresponds to CWE-89 in the Common Weakness Enumeration directory. The flaw arises because the application constructs dynamic SQL statements by concatenating user input directly into query strings without employing parameterized queries or prepared statements. When an attacker manipulates the ID parameter, they can alter the structure of the executed SQL command. For instance, by appending specific syntactic elements such as single quotes, comment markers, or UNION-based payloads, an adversary can extract sensitive information from other database tables, modify existing records, or even drop critical data structures depending on the privileges assigned to the database user account running the application. This type of injection is particularly dangerous because it exploits the trust relationship between the web server and the database engine.
The operational impact of this vulnerability is severe due to its remote exploitability. Since the manipulation occurs through standard HTTP requests, an attacker does not need physical access or prior authentication within the system's administrative interface to initiate the attack. The fact that a public proof-of-concept has been disclosed significantly lowers the barrier for entry, enabling less skilled threat actors to leverage existing tools and scripts against vulnerable instances. Successful exploitation can lead to comprehensive data breaches, including the exposure of personally identifiable information such as student names, contact details, and academic records. Furthermore, depending on the database configuration, SQL injection could potentially be chained with other vulnerabilities to achieve remote code execution or complete system compromise, thereby undermining the integrity, confidentiality, and availability of the entire application environment.
To mitigate this vulnerability, immediate remediation is required by developers maintaining instances of this software. The primary fix involves refactoring the edit.php file to utilize prepared statements with parameterized queries for all database interactions involving user input. This approach ensures that data is treated strictly as data rather than executable code, effectively neutralizing injection attempts. Additionally, implementing strict input validation on the ID field by ensuring it contains only expected integer values can provide an additional layer of defense. Beyond technical fixes, organizations should adopt secure coding standards such as OWASP Top 10 guidelines and conduct regular security audits or penetration tests to identify similar weaknesses in other parts of the application stack. Deploying a Web Application Firewall may also help detect and block known SQL injection patterns during transit until permanent code patches are applied.