CVE-2024-51598 in Selar.co Widget Plugin
Summary
by MITRE • 11/09/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Kendysond Selar.Co Widget allows DOM-Based XSS.This issue affects Selar.Co Widget: from n/a through 1.2.
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Analysis
by VulDB Data Team • 02/28/2025
This vulnerability represents a critical web application security flaw classified as CVE-2024-51598, which falls under the broader category of cross-site scripting attacks. The vulnerability specifically manifests as an improper neutralization of input during web page generation, creating an environment where malicious scripts can be executed within the context of a victim's browser. The affected component is the Kendysond Selar.Co Widget, a web-based tool that processes user input to generate dynamic content, making it susceptible to injection attacks that exploit the lack of proper input sanitization mechanisms.
The technical implementation of this vulnerability occurs through a DOM-based cross-site scripting vector, which means that the malicious payload is executed within the Document Object Model of the web page rather than being reflected in HTTP response headers or stored on the server. This particular attack vector leverages the way the widget processes and renders user-provided data, where unfiltered input parameters are directly incorporated into the page's DOM structure without appropriate sanitization or encoding. The vulnerability exists in versions from n/a through 1.2, indicating that all versions within this range lack proper protection mechanisms against malicious input manipulation.
The operational impact of this vulnerability is significant as it allows attackers to execute arbitrary JavaScript code in the context of any user who views the affected web page. This enables a wide range of malicious activities including session hijacking, credential theft, redirection to malicious sites, data exfiltration, and potential privilege escalation within the application's security boundaries. The DOM-based nature of the vulnerability means that even if the server-side input validation is robust, client-side manipulation can still lead to successful exploitation, making it particularly dangerous in environments where user interaction is essential for application functionality.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-79, which specifically addresses Cross-site Scripting flaws in web applications, and maps to ATT&CK technique T1531 for the use of malicious code injection. The vulnerability's exploitation requires minimal prerequisites and can be executed through simple parameter manipulation, making it highly attractive to threat actors. Organizations using the Selar.Co Widget are at risk of having their users' sessions compromised, sensitive data exposed, and potentially their entire web application infrastructure compromised if attackers gain persistent access through this vector. The lack of version information in the affected range suggests that the vulnerability may be present in all versions of the widget, emphasizing the urgent need for immediate remediation.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms within the widget's codebase. The most effective approaches include implementing Content Security Policy headers to restrict script execution, sanitizing all user-provided input through proper encoding functions, and utilizing secure coding practices that prevent direct injection of user data into the DOM structure. Additionally, implementing proper parameter validation and ensuring that all dynamic content generation follows secure coding guidelines will significantly reduce the attack surface. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other components, while keeping the widget updated to the latest secure version once available. Organizations should also consider implementing web application firewalls and monitoring systems to detect potential exploitation attempts and maintain detailed logging of user interactions with the affected widget to support incident response activities.