CVE-2026-3767 in sanitize or validate this input
Summary
by MITRE • 03/08/2026
A weakness has been identified in itsourcecode sanitize or validate this input 1.0. Affected is an unknown function of the file /admin/teacher-attendance.php. Executing a manipulation of the argument teacher_id can lead to sql injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
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Analysis
by VulDB Data Team • 03/12/2026
The vulnerability described in CVE-2026-3767 represents a critical sql injection flaw within the itsourcecode sanitize or validate this input 1.0 software package. This weakness specifically affects an unknown function located in the administrative file /admin/teacher-attendance.php which processes teacher attendance data. The vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize or validate user-supplied data before incorporating it into database queries. The attack vector is particularly concerning as it allows remote exploitation through manipulation of the teacher_id parameter, which serves as the primary entry point for malicious input injection.
The technical implementation of this vulnerability aligns with common sql injection patterns where user-controllable parameters are directly concatenated into sql statements without proper sanitization or parameterization. When an attacker submits a manipulated teacher_id value, the application fails to validate or escape special sql characters, allowing malicious sql commands to be executed within the database context. This flaw operates at the application layer and specifically targets the database interaction component of the attendance management system, potentially enabling unauthorized access to sensitive educational data including student records, attendance logs, and teacher information. The vulnerability's classification as a remote exploit means that attackers can leverage this weakness without requiring physical access to the system, making it particularly dangerous in networked environments.
The operational impact of this vulnerability extends beyond simple data theft to encompass potential system compromise and data integrity violations. Successful exploitation could allow attackers to extract sensitive information from the database, modify attendance records, delete critical data, or even escalate privileges within the application. The fact that a public exploit has been made available significantly increases the risk level as it lowers the barrier to exploitation for malicious actors who may not possess advanced technical skills. Organizations relying on this software for educational administration face potential privacy violations, regulatory compliance issues, and operational disruptions that could affect thousands of students and staff members.
Mitigation strategies for CVE-2026-3767 should prioritize immediate implementation of proper input validation and parameterized queries to prevent sql injection attacks. Organizations must update to the latest version of the software where available, as this vulnerability likely represents a known issue that has been addressed in newer releases. The implementation of web application firewalls and input sanitization routines should be enforced to filter malicious characters before they reach database processing functions. Additionally, database access controls should be reviewed to ensure that application accounts have minimal necessary privileges, following the principle of least privilege as outlined in cybersecurity best practices. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other application components, as this flaw demonstrates poor input handling practices that may exist elsewhere in the codebase. The vulnerability's presence in an administrative function specifically highlights the need for enhanced security measures in privileged application areas, aligning with attack techniques documented in the mitre att&ck framework under database access and privilege escalation categories.