CVE-2023-51320 in PHPJabbers Night Club Booking Software
Summary
by MITRE • 02/20/2025
PHPJabbers Night Club Booking Software v1.0 is vulnerable to CSV Injection vulnerability which allows an attacker to execute remote code. The vulnerability exists due to insufficient input validation on Languages section Labels any parameters field in System Options that is used to construct CSV file.
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Analysis
by VulDB Data Team • 03/07/2026
The vulnerability identified as CVE-2023-51320 affects PHPJabbers Night Club Booking Software version 1.0 and represents a critical CSV injection flaw that can lead to remote code execution. This vulnerability resides within the system's handling of user input in the Languages section Labels parameters field located within System Options. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize or escape user-supplied data before it is incorporated into CSV file generation processes. When an attacker submits malicious input containing CSV formula injection payloads such as leading equals signs followed by shell commands, these inputs are directly embedded into the generated CSV files without proper sanitization. The vulnerability aligns with CWE-1236, which specifically addresses the improper neutralization of special elements used in CSV files, and demonstrates how insufficient input validation can create pathways for arbitrary code execution through data processing vulnerabilities.
The operational impact of this vulnerability extends beyond simple data corruption or manipulation, as it enables full remote code execution capabilities for authenticated attackers who can access the system options interface. When the CSV generation functionality processes malicious input, the injected formulas can be executed by spreadsheet applications when users open the affected files, creating a vector for command execution on the server hosting the software. This type of vulnerability operates under the ATT&CK framework's technique T1059.001 for command and scripting interpreter, as it allows attackers to execute arbitrary commands through the CSV injection mechanism. The vulnerability is particularly dangerous because it can be exploited through legitimate administrative interfaces, making detection more challenging and potentially allowing attackers to establish persistent access to the system. Attackers can leverage this flaw to execute system commands, potentially escalating privileges, accessing sensitive data, or deploying additional malicious payloads within the compromised environment.
Mitigation strategies for CVE-2023-51320 must focus on implementing robust input validation and sanitization measures throughout the application's data processing pipeline. Organizations should immediately apply the vendor's official patch or upgrade to a non-vulnerable version of the PHPJabbers Night Club Booking Software. The implementation of proper input sanitization techniques, including the removal or escaping of special characters such as equals signs, plus signs, and minus signs from user inputs before CSV generation, forms a critical defensive measure. Additionally, administrators should implement strict access controls and monitoring of system options interfaces to detect unauthorized modifications. Network segmentation and application firewalls can help limit the attack surface, while regular security audits should verify that no malicious code has been introduced through this vulnerability. The solution should also include proper CSV file generation practices that either escape formula injection attempts or use alternative data formats that do not support formula execution, aligning with security best practices outlined in OWASP's top ten vulnerabilities and the NIST Cybersecurity Framework's protective measures for input validation and data sanitization.