CVE-2016-1000307 in ClipBucket
Summary
by MITRE
Multiple Cross Site Scripting (XSS) Vulnerabilities in ClipBucket v2.8.1 and probably prior allow Remote Attackers to inject arbitrary web script or HTML via (1) profile_desc, about_me, schools, occupation, companies, hobbies, fav_movies, fav_music, fav_books parameters to ProfileSettings page; (2) note parameter to PersonalNotes Section; (3) closed_msg, description, allowed_types parameters to WebsiteConfigurations Section. NOTE: the collection_description vector is already covered by CVE-2015-4673.
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Analysis
by VulDB Data Team • 08/26/2020
The vulnerability CVE-2016-1000307 represents a critical cross site scripting flaw discovered in ClipBucket v2.8.1 and potentially earlier versions of this media sharing platform. This vulnerability stems from inadequate input validation and sanitization mechanisms within the application's web interface, specifically targeting multiple user profile and administrative configuration parameters. The flaw allows remote attackers to execute malicious scripts in the context of other users' browsers, creating a significant security risk for the entire platform ecosystem.
The technical implementation of this vulnerability occurs through multiple attack vectors that target different sections of the ClipBucket application. The primary attack surfaces include the profile settings page where parameters such as profile_desc, about_me, schools, occupation, companies, hobbies, fav_movies, fav_music, and fav_books are susceptible to injection attacks. Additionally, the personal notes section contains a note parameter that can be exploited, while the website configurations section presents vulnerabilities through closed_msg, description, and allowed_types parameters. These vectors demonstrate a widespread failure in input validation across the application's user data handling mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, creating potential pathways for more sophisticated attacks within the ClipBucket environment. Attackers could leverage these XSS vulnerabilities to steal user sessions, redirect victims to malicious sites, deface the platform's content, or harvest sensitive information from authenticated users. The persistence of these flaws across multiple sections suggests a systemic issue in the application's security architecture rather than isolated incidents. This vulnerability particularly threatens user privacy and platform integrity, as it enables attackers to manipulate user profiles and potentially gain unauthorized access to administrative functions.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-79 (Cross-site Scripting) and maps to ATT&CK technique T1566 (Phishing) and T1213 (Data from Information Repositories). The flaw represents a classic example of insufficient input sanitization, where user-supplied data is directly incorporated into web pages without proper encoding or validation. Organizations using ClipBucket should immediately implement input validation measures including proper HTML escaping, content security policies, and regular security audits to address this vulnerability. The recommended mitigation strategies include implementing comprehensive output encoding, establishing strict input validation rules, and deploying web application firewalls to prevent malicious script injection attempts. Additionally, regular security updates and penetration testing should be conducted to identify and remediate similar vulnerabilities in the platform's codebase.