CVE-2020-35309 in Bakeshop Online Ordering System
Summary
by MITRE • 01/26/2021
Bakeshop Online Ordering System in PHP/MySQLi 1.0 is affected by cross-site scripting (XSS) which allows remote attackers to inject an arbitrary web script or HTML in admin dashboard - "Categories".
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Analysis
by VulDB Data Team • 02/19/2021
The CVE-2020-35309 vulnerability represents a critical cross-site scripting flaw within the Bakeshop Online Ordering System version 1.0, which utilizes PHP and MySQLi for its backend operations. This vulnerability specifically targets the administrative dashboard component of the system, particularly the "Categories" section where unauthorized users can exploit the flaw to inject malicious scripts. The vulnerability stems from insufficient input validation and output sanitization mechanisms that fail to properly filter or escape user-supplied data before rendering it within the web interface. Attackers can leverage this weakness to execute arbitrary JavaScript code within the context of other users' browsers, potentially compromising the entire administrative session and the underlying system.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the Categories management interface without proper sanitization measures. The system fails to implement adequate Content Security Policy headers or HTML escaping mechanisms, allowing crafted payloads to persist in the database and subsequently execute when the admin dashboard is accessed. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and aligns with ATT&CK technique T1566.001 for initial access through malicious web content. The vulnerability's impact extends beyond simple script injection as it provides attackers with the ability to hijack administrator sessions, steal sensitive credentials, or manipulate the system's data integrity.
The operational consequences of this vulnerability are severe for any organization utilizing this specific ordering system. An attacker who successfully exploits this XSS flaw can gain unauthorized access to the administrative dashboard, potentially leading to complete system compromise. The attacker could modify or delete product categories, alter pricing information, inject malicious links to phishing pages, or even escalate privileges within the system. This vulnerability particularly affects e-commerce environments where administrative access controls are critical for maintaining data integrity and customer trust. The persistent nature of stored XSS vulnerabilities means that the malicious scripts will execute every time an administrator views the affected Categories section, creating a continuous attack vector that remains active until the vulnerability is patched.
Mitigation strategies for CVE-2020-35309 must focus on implementing robust input validation and output encoding mechanisms throughout the application. The system should employ proper HTML escaping before rendering any user-supplied content, utilize Content Security Policy headers to restrict script execution, and implement proper sanitization of all inputs before database storage. Organizations should also consider implementing Web Application Firewalls to detect and block malicious payloads, conduct regular security code reviews to identify similar vulnerabilities, and establish proper access controls and monitoring for administrative interfaces. Additionally, the system should be updated to a patched version of the Bakeshop Online Ordering System or replaced with a more secure alternative that follows modern security standards and practices. Regular penetration testing and vulnerability assessments should be conducted to ensure that similar XSS vulnerabilities are not present in other components of the system.