CVE-2026-105468 in Online-Appointment-Booking-System
Summary
by MITRE • 10/06/2026
A vulnerability was found in girishsaraf Online-Appointment-Booking-System up to f427b4757128ca253d33d0cc4e87bbb9c999a4d5. This affects the function mysqli_query of the file Admin/mlogin.php of the component Login Handler. Performing a manipulation of the argument uname/pass results in sql injection. The attack may be initiated remotely. The exploit has been made public and could be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 10/06/2026
The girishsaraf Online-Appointment-Booking-System contains a critical security flaw within its authentication mechanism that allows for remote code execution via SQL injection. This vulnerability resides specifically in the Admin/mlogin.php file, which serves as the entry point for the Login Handler component. The root cause of this issue is the improper handling of user-supplied input passed through the uname and pass arguments during database queries. Instead of utilizing parameterized statements or prepared statements to safely interact with the underlying MySQLi database engine, the application directly concatenates these variables into SQL query strings before passing them to the mysqli_query function. This architectural oversight creates a classic injection vector where an attacker can manipulate the input data to alter the logic of the executed SQL command.
From a technical perspective, this flaw is categorized under CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The vulnerability allows for remote exploitation because the login interface is typically accessible over network boundaries without requiring prior authentication credentials. An attacker can craft malicious payloads that bypass standard authentication checks or extract sensitive data from the database backend. Since the system uses a rolling release model with continuous updates and lacks specific version pinning, identifying affected instances requires checking against the commit hash f427b4757128ca253d33d0cc4e87bbb9c999a4d5 or verifying if the codebase has been patched in subsequent commits. The fact that exploit code is publicly available significantly increases the risk landscape, as automated scanning tools and opportunistic attackers can leverage these scripts to compromise systems with minimal effort.
The operational impact of this vulnerability extends beyond simple unauthorized access. Successful exploitation could lead to a complete compromise of the application's integrity and confidentiality. Attackers may use SQL injection techniques such as UNION-based attacks or blind boolean-based injections to dump database contents, including user credentials, appointment schedules, and personal identifiable information stored within the system. Furthermore, depending on the privileges granted to the database account used by the web application, an attacker might escalate their access to execute operating system commands via features like xp_cmdshell in Microsoft SQL Server or similar extensions in MySQL environments that allow file read/write operations. This aligns with ATT&CK technique T1059, Command and Scripting Interpreter, if further exploitation steps are taken after initial database compromise.
Mitigation strategies must focus on immediate remediation of the codebase and long-term secure development practices. The primary fix involves refactoring the Admin/mlogin.php file to replace direct string concatenation with prepared statements using MySQLi or PDO extensions. This ensures that user input is treated strictly as data rather than executable SQL logic, effectively neutralizing injection attempts. Additionally, implementing strict input validation and sanitization at multiple layers provides defense in depth. Organizations deploying this software should immediately update their instances if a patched version has been released by the maintainer, although the lack of response to early issue reports suggests that users may need to apply community-driven patches or fork the repository themselves until official support is resumed. Regular security audits and static application security testing (SAST) tools can help identify similar patterns in other parts of the codebase before they are exploited in production environments.