CVE-2026-105187: Online Admission System SQL Injection Flaw

CVE-2026-105187 is a SQL injection vulnerability in itsourcecode Online Admission System 1.0 affecting the admin key.php file. Attackers can exploit this remotely disclosed flaw to manipulate database queries and compromise data integrity. This article covers technical details, affected versions, impact assessment, and mitigation strategies.

CVE-2026-105187 Overview

CVE-2026-105187 is a SQL injection vulnerability in itsourcecode Online Admission System 1.0. The flaw resides in the /admin/key.php script, where the ID parameter is passed to a database query without proper sanitization. An authenticated remote attacker can manipulate this parameter to inject arbitrary SQL statements. The vulnerability is tracked under CWE-74: Improper Neutralization of Special Elements in Output. Public exploit details have been disclosed through VulDB and a corresponding GitHub Issue Tracker entry.

Critical Impact
Authenticated attackers can inject SQL commands through the ID parameter in /admin/key.php, potentially exposing or modifying admission records in the backend database.

Affected Products

itsourcecode Online Admission System 1.0
Component: /admin/key.php
Vulnerable parameter: ID

Discovery Timeline

2026-10-05 - CVE-2026-105187 published to NVD
2026-10-06 - Last updated in NVD database

Technical Details for CVE-2026-105187

Vulnerability Analysis

The vulnerability is a SQL injection flaw in the administrative key management script of the Online Admission System. The /admin/key.php endpoint accepts an ID parameter from the request and incorporates it directly into a backend SQL query. Because the application does not sanitize or parameterize this input, an attacker can append arbitrary SQL syntax to the query. Successful exploitation can disclose database contents, modify stored admission data, or bypass application logic that relies on database state. The attacker needs low privileges on the application to reach the vulnerable endpoint, but no user interaction is required.

Root Cause

The root cause is improper neutralization of special elements within an output context [CWE-74]. The ID parameter in /admin/key.php is concatenated into a SQL statement without prepared statements, parameter binding, or input validation. Any value supplied to this parameter is interpreted as part of the SQL grammar when it reaches the database engine.

Attack Vector

The attack vector is network-based. An authenticated administrative user, or an attacker who has gained low-privilege admin access, sends an HTTP request to /admin/key.php with a crafted ID parameter. The injected payload is executed by the backend database. See the VulDB Vulnerability Report for additional technical context on exploitation.

// No verified exploit code is published. See the GitHub Issue Tracker
// (https://github.com/ltranquility/submit/issues/28) for disclosure details.

Detection Methods for CVE-2026-105187

Indicators of Compromise

HTTP requests to /admin/key.php containing SQL metacharacters such as single quotes, UNION, SELECT, --, or /* in the ID parameter.
Database error messages or stack traces returned to clients requesting /admin/key.php.
Unexpected changes to admission records, user accounts, or administrative keys stored by the application.

Detection Strategies

Deploy web application firewall rules that inspect the ID parameter on /admin/key.php for SQL injection payload patterns.
Enable database query logging and alert on queries referencing the key table with syntax anomalies or tautologies such as OR 1=1.
Correlate web server access logs with database audit logs to identify requests that produce unusually large result sets or long execution times.

Monitoring Recommendations

Monitor administrative authentication events for brute-force attempts that could precede exploitation of this authenticated flaw.
Alert on repeated HTTP 500 responses from /admin/key.php, which may indicate injection probing.
Track egress traffic from the application host for signs of data exfiltration following suspicious admin activity.

How to Mitigate CVE-2026-105187

Immediate Actions Required

Restrict network access to /admin/ paths using IP allowlists or a VPN until a vendor patch is available.
Rotate administrative credentials and review all admin accounts for unauthorized access.
Audit the key table and related admission records for unexpected modifications.

Patch Information

No vendor patch has been published at the time of writing. Users of itsourcecode Online Admission System 1.0 should monitor the IT Source Code website and the VulDB CVE Report for updates. In the interim, apply source-level fixes by converting the query in /admin/key.php to use parameterized statements with PDO or mysqli prepared statements and by validating that ID is a numeric value.

Workarounds

Modify /admin/key.php to cast the ID parameter to an integer before use, for example $id = (int)$_GET['ID'];.
Deploy a web application firewall rule that blocks SQL metacharacters in the ID parameter for this endpoint.
Apply the principle of least privilege to the database account used by the application so it cannot perform destructive operations.

bash

# Example ModSecurity rule to block SQL metacharacters in the ID parameter
SecRule REQUEST_URI "@beginsWith /admin/key.php" \
    "chain,phase:2,deny,status:403,id:1050187,msg:'Possible SQLi in key.php ID parameter'"
    SecRule ARGS:ID "@rx ['\"();]|--|/\*|\bUNION\b|\bSELECT\b" "t:lowercase"