CVE-2026-5579 Overview
A SQL injection vulnerability has been identified in CodeAstro Online Classroom 1.0 within the Parameter Handler component. This vulnerability affects the file /OnlineClassroom/updatedetailsfromfaculty.php?myfid=108, where manipulation of the fname argument can lead to SQL injection attacks. The attack can be performed remotely by authenticated users, and the exploit has been publicly disclosed.
Critical Impact
Authenticated attackers can exploit this SQL injection vulnerability to extract, modify, or delete database contents, potentially compromising student records, faculty information, and sensitive academic data stored in the Online Classroom system.
Affected Products
- CodeAstro Online Classroom 1.0
- Parameter Handler Component in /OnlineClassroom/updatedetailsfromfaculty.php
Discovery Timeline
- 2026-04-05 - CVE-2026-5579 published to NVD
- 2026-04-07 - Last updated in NVD database
Technical Details for CVE-2026-5579
Vulnerability Analysis
This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) exists in the faculty profile update functionality of CodeAstro Online Classroom. The application fails to properly sanitize user-supplied input in the fname parameter before incorporating it into SQL queries.
The vulnerable endpoint updatedetailsfromfaculty.php accepts faculty profile data including first name through the fname parameter. When this input is processed without adequate validation or parameterized queries, attackers can inject malicious SQL statements that execute within the context of the database.
The network-accessible nature of this vulnerability means any authenticated user with access to the faculty update functionality can potentially exploit it without requiring special conditions or user interaction.
Root Cause
The root cause of this vulnerability is improper input validation and lack of parameterized queries in the PHP application. The fname argument is directly concatenated into SQL statements without proper sanitization, escaping, or the use of prepared statements. This classic injection flaw allows attackers to break out of the intended query context and execute arbitrary SQL commands.
Attack Vector
The attack is network-based and requires low privileges (authenticated access). An attacker can craft malicious input containing SQL syntax within the fname parameter when submitting a faculty profile update request. The vulnerable endpoint /OnlineClassroom/updatedetailsfromfaculty.php with the myfid parameter identifying the target record processes this input unsafely.
Successful exploitation could allow attackers to:
- Extract sensitive data from the database including user credentials and personal information
- Modify or delete existing database records
- Potentially escalate privileges within the application
- In some configurations, execute operating system commands through database functions
Detection Methods for CVE-2026-5579
Indicators of Compromise
- Unusual SQL error messages in application logs originating from updatedetailsfromfaculty.php
- HTTP requests to /OnlineClassroom/updatedetailsfromfaculty.php containing SQL keywords (UNION, SELECT, INSERT, DROP, etc.) in the fname parameter
- Database query logs showing malformed or suspicious queries from the faculty update function
- Unexpected changes to faculty records or database schema
Detection Strategies
- Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in POST/GET parameters
- Implement application-level logging for all database queries executed by updatedetailsfromfaculty.php
- Monitor for anomalous database access patterns, particularly bulk data extraction operations
- Use intrusion detection systems (IDS) with signatures for common SQL injection attack strings
Monitoring Recommendations
- Enable verbose logging on the database server to capture all queries from the Online Classroom application
- Set up alerts for failed or unusual SQL queries originating from the PHP application
- Monitor network traffic for patterns consistent with data exfiltration following SQL injection exploitation
- Review access logs for repeated requests to the vulnerable endpoint from single IP addresses
How to Mitigate CVE-2026-5579
Immediate Actions Required
- Restrict access to the vulnerable endpoint /OnlineClassroom/updatedetailsfromfaculty.php until a patch is available
- Implement WAF rules to filter SQL injection attempts targeting the fname parameter
- Review database user privileges and apply principle of least privilege
- Consider temporarily disabling the faculty profile update functionality if it is not business-critical
Patch Information
No official patch has been released by CodeAstro at the time of publication. Organizations using CodeAstro Online Classroom 1.0 should monitor the CodeAstro Security Resource for security updates. Additional vulnerability details are available through the GitHub CVE Issue Tracker and VulDB Vulnerability #355349.
Workarounds
- Apply input validation by implementing server-side filtering to reject special characters and SQL keywords in the fname parameter
- Modify the PHP code to use prepared statements with parameterized queries instead of string concatenation
- Deploy a reverse proxy or WAF in front of the application configured to detect and block injection attempts
- Implement network segmentation to limit database access only from the application server
# WAF rule example for ModSecurity to block SQL injection in fname parameter
SecRule ARGS:fname "@detectSQLi" "id:100001,phase:2,deny,status:403,msg:'SQL Injection attempt detected in fname parameter'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
