CVE-2022-42100 in SocialMediaWebsite
Summary
by MITRE • 11/29/2022
KLiK SocialMediaWebsite Version 1.0.1 has XSS vulnerabilities that allow attackers to store XSS via location input reply-form.
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Analysis
by VulDB Data Team • 04/26/2025
The vulnerability identified as CVE-2022-42100 affects KLiK SocialMediaWebsite version 1.0.1 and represents a critical cross-site scripting flaw that enables remote attackers to execute malicious scripts within the context of victim browsers. This vulnerability specifically manifests through the location input field within the reply-form functionality of the social media platform, creating a persistent threat vector that can compromise user sessions and data integrity. The flaw allows attackers to inject malicious JavaScript code that persists in the application's database and executes whenever other users view the affected content, making it particularly dangerous for social media platforms where user-generated content is prevalent.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the application's form processing pipeline. When users submit replies containing location data through the reply-form interface, the application fails to properly sanitize or escape special characters that could be interpreted as HTML or JavaScript code. This insufficient sanitization creates an opportunity for attackers to embed malicious payloads that are subsequently stored in the database and rendered to other users without proper security context validation. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, where improper validation of user-supplied data leads to execution of malicious scripts.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to perform session hijacking, steal user credentials, redirect victims to malicious sites, and potentially escalate privileges within the application. Users who view affected content become victims of the stored XSS attack, with their browsers executing the injected scripts as if they originated from the legitimate application. This creates a chain reaction where compromised user sessions can be leveraged for further attacks, including data exfiltration, account takeovers, and the distribution of additional malware through infected user networks. The persistent nature of stored XSS makes this vulnerability particularly dangerous as it can affect multiple users over extended periods without requiring repeated exploitation attempts.
Organizations should implement comprehensive mitigation strategies that include immediate input validation, output encoding, and content security policy enforcement to address this vulnerability. The recommended approach involves implementing strict sanitization of all user inputs through established libraries and frameworks that can identify and neutralize potentially malicious content. Additionally, organizations should deploy web application firewalls that can detect and block known XSS attack patterns, while also implementing proper session management and secure coding practices that align with OWASP Top Ten recommendations. The vulnerability demonstrates the critical importance of defense-in-depth strategies and proper security testing throughout the software development lifecycle, as it highlights the need for continuous security validation of user input handling mechanisms within web applications. This particular flaw serves as a reminder of the essential security controls required for social media platforms that process large volumes of user-generated content and must maintain robust protection against client-side attack vectors.