CVE-2018-7650 in Hot Scripts Clone:Script Classified
Summary
by MITRE
PHP Scripts Mall Hot Scripts Clone:Script Classified Version 3.1 Application is vulnerable to stored XSS within the "Add New" function for a Management User. Within the "Add New" section, the application does not sanitize user supplied input to the name parameter, and renders injected JavaScript code to the user's browser. This is different from CVE-2018-6878.
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Analysis
by VulDB Data Team • 03/14/2020
The vulnerability identified as CVE-2018-7650 affects PHP Scripts Mall Hot Scripts Clone:Script Classified Version 3.1 application, representing a critical stored cross-site scripting flaw that compromises user security within the management interface. This vulnerability specifically manifests in the "Add New" function where administrative users can create new entries, making it a prime target for attackers seeking persistent code execution within the application's context. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly process user-supplied data before storing and rendering it back to users.
The technical implementation of this vulnerability occurs when a management user accesses the "Add New" section of the application and submits data containing malicious JavaScript code within the name parameter field. The application stores this unsanitized input without proper encoding or filtering, subsequently rendering the injected payload directly into the browser of any user who views the affected entry. This stored nature of the vulnerability means that the malicious code persists in the application's database and executes every time the affected content is displayed, creating a persistent threat vector that can affect multiple users over time. The vulnerability is classified under CWE-79 as a failure to sanitize input, which directly enables cross-site scripting attacks by allowing attacker-controlled data to be interpreted as executable code by web browsers.
The operational impact of CVE-2018-7650 extends beyond simple data theft or defacement, as it provides attackers with the capability to execute arbitrary code within the context of authenticated users' browsers. This persistent threat allows malicious actors to perform actions such as stealing session cookies, redirecting users to phishing sites, modifying application data, or even escalating privileges within the application's management interface. The vulnerability specifically affects management users who have access to the "Add New" functionality, creating a pathway for attackers to compromise administrative accounts and gain elevated privileges within the classified script system. Attackers can leverage this vulnerability to establish long-term access to the application's backend, potentially leading to complete system compromise and unauthorized data manipulation.
Mitigation strategies for this vulnerability must address both the immediate input sanitization requirements and the broader security posture of the application. The primary remediation involves implementing comprehensive input validation and output encoding mechanisms that sanitize all user-supplied data before storage and rendering. This includes implementing proper HTML entity encoding for all dynamic content, utilizing Content Security Policy headers to limit script execution, and implementing proper input validation routines that reject or filter malicious payloads. Security measures should also include regular security audits of input handling mechanisms, implementation of automated vulnerability scanning tools, and comprehensive security training for developers working on the application. Organizations should consider implementing the principle of least privilege for management users and establish monitoring systems to detect unusual activity patterns that might indicate exploitation attempts. The vulnerability's classification under ATT&CK technique T1059.007 for script injection highlights the need for comprehensive application security controls that address both the immediate flaw and broader threat landscape considerations.