CVE-2024-24932 in VK Poster Group Plugin
Summary
by MITRE • 02/12/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Djo VK Poster Group allows Reflected XSS.This issue affects VK Poster Group: from n/a through 2.0.3.
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Analysis
by VulDB Data Team • 03/03/2024
This vulnerability represents a classic cross-site scripting flaw that resides in the web application's input handling mechanisms within the Djo VK Poster Group software. The issue manifests as an improper neutralization of input during web page generation, creating a pathway for malicious actors to inject client-side scripts into web pages viewed by other users. The vulnerability specifically affects versions of VK Poster Group ranging from the initial release through version 2.0.3, indicating a persistent flaw that has not been addressed in the software's codebase. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws according to the CWE database. The reflected nature of this XSS vulnerability means that the malicious script is reflected off the web server and executed in the victim's browser, typically through crafted URLs or form submissions that contain the malicious payload.
The technical exploitation of this vulnerability occurs when user-supplied input is not properly sanitized or encoded before being rendered in web page content. Attackers can craft malicious payloads that, when executed, can steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even deface the web application. The impact is particularly concerning for a tool like VK Poster Group, which likely handles user authentication and social media posting functionality, making it a prime target for attackers seeking to escalate privileges or gain unauthorized access to social media accounts. The vulnerability's presence in the web page generation process indicates that the application fails to implement proper output encoding or sanitization mechanisms, which are fundamental security controls that should be applied to all user-controllable data before it is rendered in HTML contexts.
From an operational standpoint, this reflected XSS vulnerability creates significant risk for both administrators and end users of the VK Poster Group application. The attack surface is relatively broad since any input field that generates web page content could potentially be exploited, including form fields, URL parameters, or API endpoints that accept user data. The reflected nature means that attackers can craft specific URLs that, when clicked by a victim, will execute malicious scripts in their browser context. This makes the vulnerability particularly dangerous for social media management tools where users might be tricked into clicking malicious links or where automated attacks could target the application's user base. The vulnerability's persistence across multiple versions suggests that the development team has not adequately addressed the root cause, potentially indicating deeper issues with input validation and output encoding practices within the application's architecture.
The recommended mitigation strategies for this vulnerability align with established security best practices and the ATT&CK framework's defensive measures against web application attacks. Organizations should immediately implement proper input validation and output encoding mechanisms, ensuring that all user-supplied data is sanitized before being rendered in web pages. The application should employ context-specific output encoding, such as HTML entity encoding for HTML contexts, JavaScript encoding for script contexts, and URL encoding for URL contexts. Additionally, implementing a Content Security Policy (CSP) would provide an additional layer of defense against XSS attacks by restricting the sources from which scripts can be loaded and executed. Regular security code reviews and automated vulnerability scanning should be conducted to identify similar flaws in other parts of the application. The vulnerability also highlights the importance of keeping software updated and applying security patches promptly, as the issue has persisted through multiple versions without resolution. Organizations using this software should consider implementing network-based protections such as web application firewalls to detect and block malicious payloads before they can reach vulnerable endpoints.