CVE-2026-100739 in CloudClassroom-PHP-Project
Summary
by MITRE • 09/27/2026
A vulnerability was detected in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This impacts an unknown function of the file viewresult.php. Performing a manipulation of the argument seno results in sql injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 09/27/2026
The identified vulnerability resides within the CloudClassroom-PHP-Project, specifically affecting versions up to commit 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This software package is a PHP-based educational platform designed for classroom management and student assessment. The security flaw is located in the viewresult.php file, which handles the retrieval and display of academic results or performance data. While the specific function impacted remains technically unspecified due to the rolling release nature of the project, the core issue involves improper handling of user-supplied input passed via the argument seno. This parameter appears to be used directly in database queries without adequate sanitization or validation mechanisms, creating a classic injection point for attackers seeking to manipulate backend data operations.
The technical root cause is classified under CWE-89, which denotes Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The vulnerability arises because the application fails to properly escape special characters within the seno parameter before incorporating it into a SQL statement. This allows an attacker to inject arbitrary SQL code that can be interpreted by the database engine rather than being treated as literal data. Because this input is processed on the server side and potentially influences the logic of result retrieval, the flaw enables unauthorized access to sensitive information stored in the backend database. The absence of parameterized queries or prepared statements further exacerbates the risk, leaving the application vulnerable to both blind and error-based SQL injection techniques depending on how the database responds to malformed input structures.
From an operational perspective, this vulnerability poses a severe threat to data integrity and confidentiality within the educational environment. Since remote exploitation is possible, any user with network access to the CloudClassroom instance can attempt to exploit this flaw without requiring prior authentication in some configurations, or by leveraging valid credentials if required. Successful exploitation could lead to unauthorized disclosure of sensitive student records, including personal identifiable information (PII), grades, and other academic metrics stored in the database. Attackers may also use SQL injection techniques to modify existing data, delete critical records, or potentially escalate privileges within the application layer depending on the underlying database permissions. The fact that an exploit is already public significantly increases the likelihood of automated attacks targeting vulnerable instances across the internet, making immediate remediation urgent for administrators relying on this software.
The development team’s response has been inadequate given the severity and public availability of the exploit. Despite being contacted early regarding the disclosure, there was no acknowledgment or patch provided by the vendor. This lack of engagement is particularly concerning because it leaves users with no official mitigation path through standard updates. The rolling release model complicates version tracking but does not excuse the failure to address a critical security flaw once identified. Organizations currently running affected versions are exposed to ongoing risk until they can implement alternative protective measures or migrate to a more secure solution if available.
To mitigate this vulnerability, immediate action is required at both the application and infrastructure levels. The most effective long-term fix involves refactoring the code in viewresult.php to use prepared statements with parameterized queries for all database interactions involving user input. This ensures that data sent from clients is never interpreted as executable SQL commands. In the interim, before a patch can be developed or applied, administrators should implement web application firewall rules designed to detect and block common SQL injection patterns associated with the seno parameter. Input validation should also be strengthened by enforcing strict type checking and length limits on all incoming parameters. Additionally, restricting database user privileges to follow the principle of least privilege will limit the potential damage if an injection attempt succeeds. Regular security audits and code reviews are recommended to prevent similar flaws in other parts of the application architecture.