CVE-2026-16765 in Online Classroom
Summary
by MITRE • 07/24/2026
A vulnerability was determined in CodeAstro Online Classroom 1.0. Affected by this issue is some unknown functionality of the file /OnlineClassroom/loginlinkadmin.php. Executing a manipulation of the argument aid can lead to sql injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
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Analysis
by VulDB Data Team • 07/24/2026
The vulnerability identified in CodeAstro Online Classroom version 1.0 represents a critical sql injection flaw within the administrative login functionality. This weakness exists in the /OnlineClassroom/loginlinkadmin.php file where user-supplied input is improperly validated and directly incorporated into database queries without adequate sanitization or parameterization. The specific attack vector involves manipulation of the aid argument which serves as a parameter in the authentication process, allowing malicious actors to inject arbitrary sql commands that can be executed against the underlying database system.
This vulnerability falls under the common weakness enumeration CWE-89 which categorizes sql injection attacks as one of the most prevalent and dangerous web application security flaws. The attack surface is particularly concerning given that it operates through a remote execution model, meaning that adversaries do not require physical access to the system or local network presence to exploit this weakness. The publicly disclosed exploit status significantly increases the risk profile as threat actors can readily leverage existing proof-of-concept code to target installations without requiring extensive development efforts.
The operational impact of this vulnerability extends beyond simple data theft or manipulation, as successful exploitation could enable attackers to gain administrative privileges within the online classroom environment. This would allow unauthorized users to access sensitive student information, modify course content, manipulate grades, and potentially establish persistent backdoors within the system. The implications are particularly severe in educational contexts where personal data protection regulations such as gdpr andFERPA may apply, creating additional compliance and legal risks for organizations using this software.
From an attack framework perspective, this vulnerability aligns with techniques documented in the attack tactics and techniques matrix under the execution and privilege escalation categories. The remote nature of the exploit means that attackers can target multiple installations simultaneously without requiring direct system access or specialized network reconnaissance. Mitigation strategies should include immediate input validation and parameterized queries to prevent sql injection, along with comprehensive code review processes to identify similar patterns throughout the application. Organizations should also implement web application firewalls, conduct regular security assessments, and ensure proper patch management protocols are in place to address such vulnerabilities before they can be exploited by malicious actors.