CVE-2026-107082 in Slims
Summary
by MITRE • 10/19/2026
Slims (Senayan Library Management Systems) 9 Bulian 9.8.0 allows an authenticated staff user to perform SQL injection via the opac_hide and promoted GET parameters of admin/modules/bibliography/index.php, because escape_string() is applied but the values are concatenated into an unquoted numeric SQL context, leading to error-based information disclosure and arbitrary data extraction.
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Analysis
by VulDB Data Team • 10/19/2026
The vulnerability identified in Senayan Library Management Systems (Slims) version 9 Bulian 9.8.0 represents a critical security flaw within its administrative interface, specifically affecting the bibliography management module. Although the application implements input sanitization by applying an escape_string function to user-supplied data, this measure proves insufficient due to improper handling of numeric contexts in SQL query construction. The specific attack vector involves the opac_hide and promoted GET parameters located at admin/modules/bibliography/index.php. Because these values are concatenated directly into a SQL statement without being enclosed in quotes, they operate within an unquoted numeric context. This architectural oversight allows an authenticated staff user to bypass standard string-based injection defenses by leveraging numerical arithmetic or boolean logic rather than relying on quote manipulation, which is the typical requirement for traditional SQL injection attacks against quoted fields.
From a technical perspective, this flaw classifies as CWE-89 Improper Neutralization of Special Elements used in an SQL Command, specifically manifesting through error-based and blind techniques. The absence of proper type casting or strict validation ensures that even escaped strings can be interpreted as executable code when placed in numeric contexts where special characters like quotes are not required to break out of the string literal. Attackers can exploit this by injecting mathematical expressions or boolean conditions into the opac_hide and promoted parameters. For instance, introducing a condition such as 1=1 or utilizing functions that trigger database errors allows the attacker to extract sensitive information from the underlying database schema. This error-based approach is particularly dangerous because it facilitates rapid reconnaissance of the database structure, revealing table names, column types, and potentially stored credentials or patron data without requiring complex blind injection techniques over extended periods.
The operational impact of this vulnerability extends beyond simple data exfiltration to include potential compromise of system integrity and confidentiality within a library management environment. Since authentication is required, the threat actor must possess valid staff credentials, which may be obtained through phishing, credential stuffing, or insider threats. Once authenticated, the ability to perform arbitrary data extraction means that sensitive patron information, including personal identifiable information (PII), borrowing histories, and financial records related to fines or memberships, can be compromised. Furthermore, depending on the database engine's configuration and privileges granted to the application user, this SQL injection could potentially lead to remote code execution if the attacker can write files to the server disk or execute system commands via specific database features such as xp_cmdshell in Microsoft SQL Server or similar extensions in MySQL/MariaDB environments commonly used with Slims.
In alignment with industry standards and threat modeling frameworks, this vulnerability maps directly to MITRE ATT&CK technique T1059 Command and Scripting Interpreter if the injection leads to code execution, but more accurately aligns with T1119 Automated Collection due to the systematic extraction of data from the database. The exploitation path reflects common patterns seen in web application attacks where developers assume that escaping special characters is sufficient for security without considering context-specific parsing rules. This highlights a broader issue in legacy library management systems where rapid development cycles may have prioritized functionality over rigorous secure coding practices, leaving administrative interfaces vulnerable to sophisticated injection attacks despite the presence of basic sanitization layers.
To mitigate this vulnerability and prevent similar issues in related modules, immediate remediation efforts should focus on implementing parameterized queries or prepared statements for all database interactions involving user-supplied input. This approach ensures that data is treated strictly as values rather than executable code, regardless of whether it appears in a string or numeric context. Additionally, developers must enforce strict type checking and validation to ensure that parameters expected to be integers are cast explicitly to integer types before being used in SQL queries. Input validation should reject any non-numeric characters for fields designated as numeric, providing an additional layer of defense against injection attempts. Beyond code changes, deploying a Web Application Firewall (WAF) with rules tuned to detect error-based and boolean-based SQL injection patterns can provide temporary protection while patches are applied. Regular security audits and penetration testing focused on administrative interfaces are also recommended to identify other potential instances where similar context-specific vulnerabilities may exist within the Slims application architecture.