CVE-2024-29922 in Slider Hero Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Quantum Cloud Slider Hero allows Stored XSS.This issue affects Slider Hero: from n/a through 8.6.1.
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Analysis
by VulDB Data Team • 04/12/2025
The vulnerability identified as CVE-2024-29922 represents a critical cross-site scripting weakness within the Quantum Cloud Slider Hero plugin, specifically impacting versions ranging from an unspecified starting point through 8.6.1. This flaw resides in the improper neutralization of input during web page generation processes, creating a persistent security risk that enables attackers to execute malicious scripts within the context of affected user sessions. The vulnerability classification aligns with CWE-79, which specifically addresses cross-site scripting flaws where input data is not properly sanitized before being rendered in web pages. The stored nature of this XSS vulnerability means that malicious payloads can be permanently injected into the application's database or storage mechanisms, allowing them to persist and affect multiple users over time rather than requiring immediate user interaction to exploit.
The technical implementation of this vulnerability occurs when the Quantum Cloud Slider Hero plugin fails to adequately sanitize user-supplied input parameters before incorporating them into dynamically generated web content. Attackers can exploit this weakness by submitting malicious script code through input fields or parameters that are subsequently stored within the plugin's data structures. When other users view pages that contain this stored malicious content, the embedded scripts execute within their browsers, potentially stealing session cookies, redirecting to malicious sites, or performing unauthorized actions on behalf of the victims. This type of attack vector demonstrates the dangerous potential for privilege escalation and data exfiltration, as the stored XSS can be leveraged to compromise user accounts and access sensitive information within the affected web application environment.
The operational impact of CVE-2024-29922 extends beyond simple script execution, as it creates a persistent threat landscape where attackers can maintain long-term access to compromised systems through the stored malicious content. This vulnerability affects WordPress environments where the Quantum Cloud Slider Hero plugin is installed, potentially exposing thousands of websites to coordinated attacks that could result in complete system compromise. The attack surface becomes particularly concerning when considering that the vulnerability affects a widely used slider plugin, meaning that successful exploitation could impact numerous websites simultaneously. From an attacker perspective, this vulnerability aligns with ATT&CK technique T1566.001, which involves the use of malicious content delivered through web-based attacks, and specifically demonstrates the persistence mechanism described in T1566.002 where malicious content is stored and executed over time rather than being transient in nature.
Mitigation strategies for this vulnerability should prioritize immediate remediation through plugin version updates, as the issue affects versions up to 8.6.1 and likely requires patching to address the input sanitization deficiencies. System administrators should implement comprehensive input validation and output encoding mechanisms to prevent malicious content from being stored or executed within the application context. Additionally, network-based solutions such as web application firewalls can provide additional layers of protection by filtering suspicious input patterns before they reach the vulnerable plugin components. Security monitoring should include regular scanning for stored XSS vulnerabilities across all installed plugins and themes, with particular attention to commonly exploited components like slider and gallery plugins that frequently process user-generated content. The remediation process should also involve thorough security auditing of all user input handling mechanisms to ensure that similar vulnerabilities do not exist within other components of the web application ecosystem.