CVE-2026-85643 in Online Shopping System
Summary
by MITRE • 09/04/2026
A flaw has been found in code-projects Online Shopping System 1.0. Impacted is the function mysqli_query of the file admin/adduser.php. Executing a manipulation of the argument mobile 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 • 09/04/2026
The vulnerability identified in code-projects Online Shopping System version 1.0 represents a critical security flaw rooted in improper input validation and sanitization within the administrative interface. Specifically, the defect resides in the admin/adduser.php file where the mysqli_query function is utilized to interact with the underlying database. The system fails to adequately sanitize or parameterize user-supplied data before incorporating it into SQL commands. This architectural oversight allows an attacker to inject malicious SQL statements through specific input fields, thereby bypassing intended security controls and gaining unauthorized access to sensitive backend operations.
The primary technical mechanism of this exploitation involves manipulation of the mobile argument passed during user creation processes in the administrative panel. Because the application directly concatenates or interpolates the raw value of the mobile number into a database query string without employing prepared statements or rigorous escaping mechanisms, an attacker can craft payloads that alter the logic of the SQL command. This classic implementation error aligns with CWE-89, commonly known as Improper Neutralization of Special Elements used in an SQL Command, which is widely recognized as one of the most dangerous and prevalent web application vulnerabilities. The lack of input validation means that special characters such as single quotes or semicolons are not neutralized, allowing them to terminate the original query context and initiate new commands.
From a tactical perspective, this vulnerability enables remote code execution at the database level, which falls under ATT&CK technique T1059, Command and Scripting Interpreter, when combined with further exploitation steps, or more directly maps to data exfiltration techniques like T1005, Data from Local System. An attacker operating remotely can exploit this flaw to perform unauthorized actions such as extracting sensitive user credentials, modifying account details, deleting records, or potentially escalating privileges within the database environment. The fact that an exploit has been published significantly lowers the barrier for entry, allowing less sophisticated threat actors to leverage existing tools against unpatched instances of this software.
The operational impact of this vulnerability is severe due to its location in the administrative section of the application. Compromise of the admin interface typically grants full control over the system's data and configuration. Attackers can exfiltrate personally identifiable information, financial records, or other proprietary data stored within the database. Furthermore, depending on the database engine and server configuration, successful exploitation could potentially lead to remote code execution on the host machine if certain unsafe functions are enabled in MySQL, such as LOAD_FILE or INTO OUTFILE capabilities being accessible by the database user account running the application.
Mitigation strategies must focus immediately on patching the source code to eliminate the injection vector. The most effective remediation is to refactor the affected PHP script to use prepared statements with parameterized queries via the mysqli extension instead of direct string concatenation. This ensures that user input is treated strictly as data rather than executable SQL logic, rendering injection attempts harmless. Additionally, implementing strict input validation on all fields, particularly numeric ones like mobile numbers, by enforcing type checking and length constraints can provide an additional layer of defense. Deploying a Web Application Firewall may also help detect and block known exploitation patterns associated with this specific vulnerability while permanent code fixes are applied. Regular security audits and static application security testing should be integrated into the development lifecycle to prevent similar flaws in future releases.