CVE-2019-25527 in Inout EasyRooms Ultimate Edition
Summary
by MITRE • 03/12/2026
Inout EasyRooms Ultimate Edition v1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the numguest parameter. Attackers can send POST requests to the search/searchdetailed endpoint with malicious SQL payloads to bypass authentication, extract sensitive data, or modify database contents.
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Analysis
by VulDB Data Team • 03/19/2026
The vulnerability identified as CVE-2019-25527 represents a critical SQL injection flaw within the Inout EasyRooms Ultimate Edition version 1.0 web application. This security weakness resides in the application's handling of user input through the numguest parameter, which is processed by the search/searchdetailed endpoint. The flaw enables unauthenticated attackers to execute malicious SQL commands without requiring valid credentials or authorization to access the system. The vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into database queries. This allows attackers to manipulate the intended functionality of the application by injecting arbitrary SQL code that gets executed within the database context. The vulnerability specifically affects the search functionality where the numguest parameter is used to filter room availability based on guest capacity, creating an attack surface that can be exploited to compromise the underlying database infrastructure.
The technical exploitation of this vulnerability follows a standard SQL injection attack pattern where the attacker crafts malicious payloads targeting the numguest parameter in POST requests sent to the search/searchdetailed endpoint. When the application processes these requests without proper input validation, the injected SQL code becomes part of the executed database query, potentially allowing attackers to bypass authentication mechanisms, extract sensitive information from database tables, or even modify or delete data. The vulnerability's impact is amplified by the fact that it requires no authentication, making it particularly dangerous as attackers can exploit it immediately upon discovering the vulnerable endpoint. The flaw demonstrates poor application security practices and violates fundamental security principles outlined in the OWASP Top Ten, specifically targeting the SQL injection category. According to CWE classification, this vulnerability maps to CWE-89 which represents improper neutralization of special elements used in an SQL command, and the ATT&CK framework categorizes this under T1190 - Exploit Public-Facing Application, highlighting the attack surface exposure through publicly accessible web endpoints.
The operational impact of this vulnerability extends beyond simple data theft to encompass potential complete system compromise and unauthorized access to sensitive information. Attackers can leverage this vulnerability to extract user credentials, personal information, booking records, and other confidential data stored within the application's database. The ability to bypass authentication through SQL injection means that unauthorized individuals can gain access to administrative functions or sensitive data without legitimate authorization. Additionally, the vulnerability enables data manipulation capabilities that could result in financial losses, reputational damage, and regulatory compliance violations. Organizations using this vulnerable software face significant risk of data breaches, especially if the database contains personal identifiable information or financial records. The vulnerability's exploitation requires minimal technical expertise, making it particularly dangerous as it can be targeted by both skilled attackers and automated exploitation tools. Security monitoring systems may not immediately detect these attacks as they appear as legitimate application requests, complicating detection and response efforts.
Mitigation strategies for CVE-2019-25527 require immediate implementation of proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should implement proper sanitization of all user inputs, particularly those used in database operations, and ensure that all parameters are properly escaped or encoded before being incorporated into SQL statements. The recommended approach involves migrating to prepared statements or parameterized queries that separate SQL code from data, effectively preventing malicious SQL code from being executed. Network segmentation and access controls should be implemented to limit exposure of vulnerable endpoints, while regular security assessments should be conducted to identify similar vulnerabilities in other application components. Additionally, organizations should deploy web application firewalls to detect and block malicious SQL injection attempts, and implement comprehensive logging and monitoring to detect unusual database access patterns. The vulnerability highlights the importance of secure coding practices and proper security testing throughout the software development lifecycle, emphasizing the need for input validation, output encoding, and proper error handling to prevent similar issues in future releases. Regular security updates and patches should be applied to ensure that known vulnerabilities are addressed promptly, and security awareness training should be provided to development teams to prevent recurrence of such flaws in newly developed applications.