CVE-2025-23447 in Smooth Dynamic Slider Plugin
Summary
by MITRE • 03/03/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Smooth Dynamic Slider allows Reflected XSS. This issue affects Smooth Dynamic Slider: from n/a through 1.0.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 03/03/2025
This vulnerability represents a classic cross-site scripting flaw that undermines the security of web applications by allowing malicious scripts to be executed in users' browsers. The issue manifests within the NotFound Smooth Dynamic Slider plugin where input validation and output sanitization mechanisms fail to properly neutralize user-supplied data during web page generation processes. The vulnerability specifically enables reflected cross-site scripting attacks, meaning that malicious input is immediately reflected back in the application's response without adequate sanitization, creating an opportunity for attackers to inject malicious scripts that execute in the context of the victim's browser session.
The technical implementation of this flaw occurs when the slider plugin processes user input parameters through URL parameters or form fields and directly incorporates them into dynamically generated web content without proper HTML escaping or encoding. This creates a pathway for attackers to craft malicious payloads that exploit the reflected XSS vulnerability by injecting script code into the web page content. The vulnerability exists across all versions from the initial release through version 1.0, indicating that the developers have not yet implemented adequate input sanitization measures to prevent malicious code injection. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in web applications, where inadequate input validation and output encoding create opportunities for attackers to execute malicious scripts.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking to potentially enable more sophisticated attacks including credential theft, defacement of web content, and redirection to malicious sites. Attackers can exploit this vulnerability by crafting specially designed URLs that contain malicious JavaScript payloads, which when visited by unsuspecting users, execute in their browser context. The reflected nature of this XSS vulnerability means that the malicious script is immediately executed upon page load, making it particularly dangerous as users may not be aware they are being targeted. This vulnerability also aligns with ATT&CK technique T1566.001 which covers social engineering via spearphishing attachments and links, as attackers can easily craft malicious links that exploit this vulnerability. The attack surface is particularly concerning for websites that rely on user interaction with slider components, as any parameter passed to the slider could potentially serve as an attack vector.
Mitigation strategies for this vulnerability should include immediate implementation of proper input validation and output encoding mechanisms throughout the plugin codebase. All user-supplied input must be properly sanitized before being incorporated into web page content, with appropriate HTML escaping and encoding techniques applied to prevent script execution. The plugin should implement Content Security Policy headers to restrict script execution and prevent unauthorized code injection. Additionally, developers should implement proper parameter validation to ensure that only expected input formats are accepted, and any unexpected input should be rejected or sanitized appropriately. Regular security audits and code reviews should be conducted to identify and remediate similar vulnerabilities in other components of the application. The recommended approach aligns with OWASP top ten security practices for preventing cross-site scripting vulnerabilities, emphasizing the importance of proper input validation and output encoding as fundamental security controls that should be implemented at every layer of web application development.