CVE-2023-0785 in Best Online News Portal
Summary
by MITRE • 02/12/2023
A vulnerability classified as problematic was found in SourceCodester Best Online News Portal 1.0. Affected by this vulnerability is an unknown functionality of the file check_availability.php. The manipulation of the argument username leads to exposure of sensitive information through data queries. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-220645 was assigned to this vulnerability.
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Analysis
by VulDB Data Team • 03/07/2025
The vulnerability identified as CVE-2023-0785 represents a sensitive data exposure issue within the SourceCodester Best Online News Portal version 1.0, specifically affecting the check_availability.php file. This weakness falls under the category of information disclosure vulnerabilities that can have significant implications for user privacy and system security. The vulnerability is particularly concerning because it allows remote attackers to exploit the system through manipulation of the username parameter, potentially exposing sensitive information through database queries. The attack vector is remote, meaning that malicious actors can exploit this weakness without requiring physical access to the target system, making it particularly dangerous in web-based environments.
The technical flaw manifests when the check_availability.php script processes the username argument without proper input validation or sanitization mechanisms. This lack of proper parameter handling creates an opportunity for attackers to inject malicious data that can influence the database query execution. The vulnerability likely stems from insufficient input filtering that allows crafted username values to alter the intended query behavior, potentially leading to information leakage through error messages, direct database access, or unintended query results. The vulnerability classification aligns with CWE-20: Improper Input Validation, which addresses weaknesses that occur when applications fail to properly validate input data, and CWE-200: Information Exposure, which covers scenarios where sensitive information is unintentionally exposed to unauthorized parties.
The operational impact of this vulnerability extends beyond simple data leakage, as it can enable attackers to perform reconnaissance activities against the user base of the news portal. Remote exploitation capabilities mean that threat actors can systematically test usernames and potentially discover valid accounts, leading to account enumeration attacks that can serve as a foundation for more sophisticated attacks such as credential stuffing or brute force attempts. The disclosure of this exploit to the public through VDB-220645 indicates that the vulnerability has already been analyzed and potentially weaponized by malicious actors, increasing the urgency for remediation. This type of vulnerability can also contribute to broader security incidents when combined with other weaknesses, as the leaked information can provide attackers with valuable intelligence for targeting specific users or conducting social engineering attacks.
Mitigation strategies for CVE-2023-0785 should focus on implementing proper input validation and sanitization mechanisms within the check_availability.php file. The implementation of parameterized queries or prepared statements would significantly reduce the risk of information disclosure by ensuring that user input cannot alter the intended query structure. Additionally, proper error handling should be implemented to prevent the exposure of database-specific error messages that could aid attackers in understanding the system's internal structure. Network-level protections such as web application firewalls and access controls should be deployed to monitor and restrict access to sensitive endpoints. The vulnerability also highlights the importance of regular security assessments and code reviews to identify similar issues in other components of the application. This weakness demonstrates the critical need for following secure coding practices and adheres to ATT&CK technique T1213: Data from Information Repositories, which covers methods attackers use to extract data from repositories and databases. Organizations should also implement monitoring solutions to detect unusual patterns of access to the check_availability.php endpoint, as this can indicate attempted exploitation of the vulnerability. The remediation process should include thorough testing to ensure that input validation does not inadvertently break legitimate functionality while effectively preventing the exploitation vector.