CVE-2026-86519 in Student Crud Operation
Summary
by MITRE • 09/08/2026
A vulnerability was found in code-projects Student Crud Operation 1.0. This impacts an unknown function of the file /card_activation.sql of the component Backup File Handler. The manipulation results in information disclosure. The attack can be launched remotely. The exploit has been made public and could be used.
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Analysis
by VulDB Data Team • 09/08/2026
The vulnerability identified within code-projects Student Crud Operation version 1.0 represents a critical security flaw rooted in improper handling of backup files, specifically targeting the /card_activation.sql file through the Backup File Handler component. This issue falls under the category of information disclosure vulnerabilities, where sensitive data is exposed to unauthorized parties due to inadequate access controls or secure coding practices. The presence of SQL script files within accessible directories often indicates a failure to restrict direct web server access to backend database structures, which can contain schema definitions, stored procedures, and potentially hardcoded credentials or connection strings that reveal the underlying architecture of the application.
From a technical perspective, this flaw is classified under CWE-530, Exposure of Backup File to an Unauthorized Actor, as well as CWE-209, Generation of Error Message Containing Sensitive Information if error handling leaks details during file access attempts. The vulnerability allows for remote exploitation without requiring authentication, meaning any internet user with knowledge of the directory structure can retrieve these sensitive files. This aligns with ATT&CK technique T1537, which involves transferring data to an external server via a backup service or similar mechanism, although in this case, it is more accurately described as direct access to stored artifacts that were not intended for public consumption. The fact that the exploit has been made public significantly increases the risk landscape, enabling less sophisticated attackers to leverage existing proof-of-concept code against vulnerable instances of the software.
The operational impact of this vulnerability extends beyond simple data leakage. By accessing /card_activation.sql and potentially other backup files, an attacker can gain deep insights into the database schema, table structures, and relationships within the student information system. This reconnaissance phase is often a precursor to more severe attacks such as SQL injection or direct database manipulation. If the SQL file contains default credentials, hardcoded passwords for administrative accounts, or connection strings with privileged access rights, the confidentiality of the entire system is compromised immediately. Furthermore, exposure of internal logic and data models can facilitate targeted social engineering attacks against students and staff by revealing specific identifiers, names, or institutional processes embedded in the code comments or variable names within the script files.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Administrators should immediately restrict web server access to directories containing backup files, database scripts, and configuration backups using proper file permissions and web server configuration directives such as deny rules for .sql, .bak, or .db extensions in Apache or Nginx configurations. It is imperative to remove these sensitive files from publicly accessible web roots entirely, storing them instead on the local filesystem with restricted operating system-level permissions that are not reachable via HTTP requests. Additionally, developers should implement secure coding practices that prevent backup operations from overwriting public directories and ensure that error messages do not expose stack traces or file paths when access is denied. Regular security audits and static application security testing (SAST) can help identify such misconfigurations before deployment to production environments.