CVE-2026-7148: CodeAstro Online Classroom SQLi Flaw

CVE-2026-7148 Overview

A SQL injection vulnerability has been identified in CodeAstro Online Classroom version 1.0. The vulnerability exists in an unknown part of the file /addnewfaculty, where manipulation of the fname argument can lead to SQL injection. This flaw allows remote attackers to execute arbitrary SQL commands against the backend database, potentially compromising data confidentiality, integrity, and availability.

Critical Impact
Remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially extracting sensitive information, modifying data, or bypassing authentication mechanisms in the Online Classroom application.

Affected Products

CodeAstro Online Classroom 1.0

Discovery Timeline

2026-04-27 - CVE-2026-7148 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-7148

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) affects the /addnewfaculty endpoint in CodeAstro Online Classroom 1.0. The application fails to properly sanitize user-supplied input in the fname parameter before incorporating it into SQL queries. When a malicious user submits crafted input containing SQL syntax through this parameter, the application directly includes the unsanitized value in database queries, allowing the attacker to manipulate the query logic.

The vulnerability is remotely exploitable and requires low privileges to execute. According to the exploit information, proof-of-concept code has been published and may be used to demonstrate the attack. The network-based attack vector means that any user with access to the application's faculty creation functionality could potentially exploit this vulnerability.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the /addnewfaculty endpoint. The fname argument is directly concatenated or interpolated into SQL statements without proper sanitization, escaping, or the use of prepared statements. This allows special characters and SQL keywords to be interpreted as part of the query rather than as data values.

Attack Vector

The attack can be executed remotely over the network by an authenticated user with access to the faculty management functionality. An attacker would submit a specially crafted HTTP request to the /addnewfaculty endpoint with a malicious fname parameter containing SQL injection payloads. Common exploitation techniques include:

Union-based injection to extract data from other tables
Boolean-based blind injection to infer database contents
Time-based blind injection using database delay functions
Stacked queries to execute multiple SQL statements

The vulnerability mechanism involves sending malicious input through the fname parameter that breaks out of the intended query structure. For detailed technical information, refer to the GitHub CVE Issue Discussion and the VulDB Vulnerability #359747 entries.

Detection Methods for CVE-2026-7148

Indicators of Compromise

Unusual HTTP POST requests to /addnewfaculty containing SQL keywords such as UNION, SELECT, OR, AND, DROP, or comment sequences (--, /*)
Database error messages in application logs indicating syntax errors or unexpected query behavior
Abnormal database query patterns or execution times in database audit logs
Unexpected data modifications or extractions in faculty-related database tables

Detection Strategies

Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in requests to /addnewfaculty
Enable detailed logging on the web application server to capture all requests to sensitive endpoints
Configure database query auditing to identify unusual or malicious SQL statement executions
Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

Monitor HTTP request logs for suspicious characters and SQL syntax in the fname parameter
Review database slow query logs and error logs for anomalies
Set up alerts for multiple failed database queries originating from the same source
Implement application performance monitoring to detect unusual response times that may indicate time-based SQL injection attempts

How to Mitigate CVE-2026-7148

Immediate Actions Required

Restrict access to the /addnewfaculty endpoint to only trusted administrators until a patch is available
Implement input validation on the fname parameter to reject special characters and SQL keywords
Deploy a Web Application Firewall (WAF) with SQL injection protection rules
Review and audit all database accounts used by the application to ensure least-privilege principles

Patch Information

No official patch information is currently available from CodeAstro. Organizations should monitor the CodeAstro website for security updates and patches. In the interim, implementing the workarounds below is strongly recommended.

For additional vulnerability details and community discussion, refer to:

Workarounds

Implement parameterized queries or prepared statements for all database operations involving user input in the /addnewfaculty functionality
Apply strict input validation using allowlists to permit only expected characters in the fname field (e.g., alphanumeric characters, spaces, and hyphens)
Temporarily disable the faculty creation functionality if not immediately required
Use stored procedures with proper parameterization as an additional layer of defense

bash

# Example WAF rule configuration for ModSecurity
# Block SQL injection patterns in fname parameter
SecRule ARGS:fname "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in fname parameter',\
    tag:'CVE-2026-7148'"