CVE-2025-31907 in Team Builder Plugin
Summary
by MITRE • 04/03/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Labib Ahmed Team Builder allows Reflected XSS. This issue affects Team Builder: from n/a through 1.3.
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Analysis
by VulDB Data Team • 04/03/2025
This vulnerability represents a classic cross-site scripting flaw that resides within the web application's input handling mechanisms. The issue manifests as an improper neutralization of input data during web page generation processes, creating an entry point for malicious actors to inject client-side scripts into web applications. The vulnerability specifically affects the Team Builder application developed by Labib Ahmed, with the affected versions ranging from an unspecified starting point through version 1.3. This type of vulnerability falls under the CWE-79 category, which specifically addresses Cross-Site Scripting vulnerabilities in software applications. The reflected nature of this XSS vulnerability indicates that malicious scripts are reflected off the web server to the user's browser, typically through parameters in URLs or HTTP request methods. This means that when a user clicks on a maliciously crafted link, the script gets executed in their browser context, potentially allowing attackers to steal session cookies, perform unauthorized actions, or redirect users to malicious sites.
The technical implementation of this vulnerability occurs when user-supplied input is directly incorporated into web page content without proper sanitization or encoding. When the application processes requests containing malicious input, it fails to neutralize potentially dangerous characters or sequences that could be interpreted as executable code by web browsers. This flaw enables attackers to craft malicious URLs that, when clicked by victims, execute arbitrary JavaScript code within the victim's browser session. The reflected nature implies that the malicious payload is reflected back to the user through the application's response, making it a server-side vulnerability that can be exploited through client-side interactions. The impact extends beyond simple script execution, as reflected XSS can be leveraged for session hijacking, credential theft, and the redirection of users to phishing sites. This vulnerability directly violates the principle of input validation and output encoding, which are fundamental security practices in web application development.
The operational impact of this vulnerability creates significant risks for users of the Team Builder application, particularly in environments where sensitive data is handled or where users may be targeted through social engineering attacks. Attackers can exploit this vulnerability by crafting malicious URLs that contain JavaScript payloads, which when executed in a victim's browser, can capture session tokens, redirect users to malicious domains, or perform actions on behalf of authenticated users. The reflected nature makes this particularly dangerous because it requires no persistent storage of malicious content on the server, making detection more challenging. This vulnerability enables attackers to potentially impersonate legitimate users, access restricted functionality, or exfiltrate sensitive information from authenticated sessions. The attack surface is particularly concerning given that web applications often handle sensitive user data, and the reflected XSS can be easily weaponized through phishing campaigns or by embedding malicious links in emails, forums, or other communication channels. The vulnerability essentially undermines the trust relationship between the application and its users by allowing unauthorized code execution within the user's browser context.
Mitigation strategies for this vulnerability must focus on implementing robust input validation and output encoding mechanisms throughout the application's codebase. The primary defense involves ensuring that all user-supplied input is properly sanitized before being incorporated into web page content, with specific attention to encoding special characters that could be interpreted as HTML or JavaScript. Implementing Content Security Policy headers can provide additional protection by restricting the sources from which scripts can be loaded, while also preventing the execution of inline scripts. The application should employ proper output encoding techniques for all dynamic content, ensuring that user input is appropriately escaped when rendered in HTML contexts. Regular security code reviews should be conducted to identify and remediate similar vulnerabilities throughout the application lifecycle. Additionally, implementing proper input validation at the application level, including whitelisting of acceptable input formats and lengths, can prevent malicious payloads from being processed. The use of modern web application frameworks that provide built-in XSS protection mechanisms can significantly reduce the risk of such vulnerabilities. Organizations should also consider implementing web application firewalls to detect and block suspicious requests, while maintaining comprehensive logging and monitoring to detect potential exploitation attempts. This vulnerability serves as a reminder of the critical importance of following secure coding practices and adhering to established security standards such as those defined in the OWASP Top Ten and NIST cybersecurity guidelines.