CVE-2019-25528: Inout EasyRooms SQL Injection Vulnerability

CVE-2019-25528 Overview

CVE-2019-25528 is a SQL injection vulnerability affecting Inout EasyRooms Ultimate Edition v1.0. The vulnerability allows unauthenticated attackers to manipulate database queries by injecting SQL code through the property1 parameter. Attackers can send POST requests to the search/searchdetailed endpoint with malicious SQL payloads to extract sensitive data or modify database contents.

Critical Impact

Unauthenticated SQL injection enables attackers to extract sensitive database contents, modify data, or potentially escalate to full system compromise without requiring any credentials.

Affected Products

• Inout EasyRooms Ultimate Edition v1.0

Discovery Timeline

• 2026-03-12 - CVE-2019-25528 published to NVD
• 2026-03-12 - Last updated in NVD database

Technical Details for CVE-2019-25528

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists in the search functionality of Inout EasyRooms Ultimate Edition v1.0. The application fails to properly sanitize user-supplied input in the property1 parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL commands that are executed by the backend database server.

The vulnerability is particularly dangerous because it does not require authentication, meaning any remote attacker with network access to the application can exploit it. Successful exploitation can lead to unauthorized access to the entire database, including user credentials, booking information, and other sensitive business data.

Root Cause

The root cause is improper input validation and the lack of parameterized queries (prepared statements) in the application's database interaction layer. When user input from the property1 parameter is directly concatenated into SQL queries without proper sanitization or escaping, attackers can break out of the intended query structure and inject their own SQL commands.

Attack Vector

The attack is conducted over the network by sending specially crafted POST requests to the search/searchdetailed endpoint. An attacker injects malicious SQL code through the property1 parameter, which the application processes without adequate validation. The injected SQL is then executed with the privileges of the database user configured for the application.

Common exploitation techniques include UNION-based injection to extract data from other tables, Boolean-based blind injection to enumerate database contents character by character, and time-based blind injection when other techniques are not viable. For detailed technical information, see the Exploit-DB #46630 entry.

Detection Methods for CVE-2019-25528

Indicators of Compromise

• Unusual POST requests to the search/searchdetailed endpoint containing SQL keywords such as UNION, SELECT, OR, AND, or comment sequences
• Web application logs showing error messages related to SQL syntax errors or unexpected database responses
• Database audit logs revealing queries with suspicious patterns or unauthorized data access attempts

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the property1 parameter
• Implement application-level logging to capture and alert on requests containing SQL metacharacters
• Enable database query logging and monitor for anomalous query patterns or failed authentication attempts

Monitoring Recommendations

• Monitor web server access logs for repeated requests to the vulnerable endpoint with varying payloads
• Set up alerts for database errors that may indicate exploitation attempts
• Track outbound data transfers that could indicate successful data exfiltration

How to Mitigate CVE-2019-25528

Immediate Actions Required

• Restrict access to the search/searchdetailed endpoint using network-level controls or authentication requirements
• Deploy WAF rules to block SQL injection attempts targeting the property1 parameter
• Consider taking the affected search functionality offline until a patch can be applied

Patch Information

No vendor patch information is currently available for this vulnerability. Organizations should contact Inout Solutions for guidance on obtaining security updates. For additional context, refer to the Vulncheck Advisory.

Workarounds

• Implement input validation to whitelist only expected characters in the property1 parameter
• Use parameterized queries or prepared statements in any custom code interacting with the database
• Apply principle of least privilege to database accounts used by the application to limit potential damage from successful exploitation

Organizations running Inout EasyRooms Ultimate Edition v1.0 should prioritize addressing this vulnerability given its unauthenticated nature and the potential for significant data exposure.