CodeAstro Online Classroom CVE-2026-7743

Immediate action required: Contact CodeAstro for patched versions and apply the update to all instances of Online Classroom. Until patching is possible, implement input validation and parameterized queries (prepared statements) in the /OnlineClassroom/studentdetails endpoint, specifically for the deleteid parameter - replace string concatenation with parameterized SQL to prevent injection. Additionally, apply least-privilege database access controls by restricting the application's database user account to only the minimum required permissions (removing rights to drop tables, alter schema, or access sensitive data outside the application's scope). Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the deleteid parameter, such as detecting single quotes, SQL keywords (UNION, SELECT, DROP), and comment sequences. However, note that WAF alone is insufficient and may be bypassed with encoding - this must be paired with code-level fixes. Enable database query logging and monitoring to detect injection attempts. Restrict network access to the /OnlineClassroom/studentdetails endpoint to trusted internal networks only if possible, reducing the attack surface to authenticated local users rather than remote access. For comprehensive guidance, refer to the VulDB submission at https://vuldb.com/submit/807695 and monitor https://codeastro.com/ for official security patches.