CVE-2026-105181 in Online Admission System
Summary
by MITRE • 10/05/2026
A vulnerability was identified in itsourcecode Online Admission System 1.0. This issue affects some unknown processing of the file register1.php. The manipulation of the argument fname leads to sql injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
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Analysis
by VulDB Data Team • 10/05/2026
The identified vulnerability in itsourcecode Online Admission System version 1.0 represents a critical security flaw rooted in improper input validation within the application's backend logic. Specifically, the issue resides in the file register1.php, which handles user registration data processing. The system fails to adequately sanitize or parameterize the fname argument before incorporating it into SQL queries executed against the underlying database management system. This lack of defensive coding practices allows an attacker to inject malicious SQL commands directly through this input field, bypassing intended application logic and gaining unauthorized access to sensitive data structures.
From a technical perspective, this flaw is classified as SQL Injection, corresponding to Common Weakness Enumeration identifier CWE-89. The vulnerability arises because the developer likely concatenated user-supplied input from the fname parameter directly into an SQL statement without using prepared statements or stored procedures with bound parameters. This architectural oversight enables the manipulation of the query's structure rather than just its data content. Since the processing occurs on a server-side script accessible via standard HTTP requests, the attack vector is remote and network-based. An adversary does not require physical access to the system or prior authentication credentials to exploit this weakness, making it particularly dangerous in internet-facing deployments where such systems are often exposed without sufficient web application firewall protections.
The operational impact of exploiting this vulnerability can be severe for organizations relying on the Online Admission System. Successful exploitation allows an attacker to perform unauthorized data retrieval, potentially exposing personally identifiable information including names, contact details, and academic records stored within the database. Beyond simple data exfiltration, advanced SQL injection techniques could enable modification or deletion of critical admission records, leading to significant operational disruption and integrity issues. Furthermore, depending on the database engine configuration, an attacker might escalate privileges to execute operating system commands, thereby achieving full compromise of the underlying server infrastructure. The fact that a public exploit is available significantly lowers the barrier to entry for malicious actors, increasing the likelihood of automated scanning tools targeting this specific version of the software in real-time attacks.
To mitigate these risks and secure the environment against such exploitation, immediate remediation actions are required at both the application code level and the infrastructure layer. Developers must refactor the register1.php script to implement parameterized queries or prepared statements for all database interactions involving user input. This ensures that data is treated strictly as data rather than executable code by the SQL engine. Additionally, implementing strict input validation using allowlists for expected character sets in the fname field can provide an additional layer of defense against unexpected payloads. On the infrastructure side, deploying a Web Application Firewall configured with rulesets tailored to detect and block common SQL injection patterns can help mitigate exploitation attempts while patches are being developed or applied. Regular security audits and static application security testing should also be integrated into the development lifecycle to prevent similar vulnerabilities from recurring in future updates of the admission system software.