CVE-2025-22334 in Education LMS Plugin
Summary
by MITRE • 01/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FilaThemes Education LMS allows Stored XSS.This issue affects Education LMS: from n/a through 0.0.7.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 02/15/2025
This vulnerability represents a critical cross-site scripting weakness in the FilaThemes Education LMS platform that enables stored malicious script execution within user browsers. The flaw occurs during the web page generation process when user input is inadequately sanitized or escaped before being rendered in HTML output contexts. This improper neutralization creates an environment where attackers can inject malicious JavaScript code that persists in the application's database and executes whenever affected pages are loaded by other users.
The technical implementation of this stored XSS vulnerability stems from insufficient input validation and output escaping mechanisms within the Education LMS application. When users submit content through various interface elements such as course descriptions, user comments, or configuration fields, the application fails to properly sanitize these inputs before storing them in the database. Subsequently, when this stored data is retrieved and displayed in web pages, the malicious scripts execute in the context of other users' browsers without proper security boundaries.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. Attackers can leverage this weakness to perform a wide range of malicious activities including but not limited to credential theft, privilege escalation, data exfiltration, and establishment of persistent backdoors within the learning management system. The stored nature of this XSS vulnerability means that malicious scripts remain active even after the initial injection, potentially affecting all users who access pages containing the compromised data. This creates a sustained threat vector that can be exploited repeatedly without requiring continuous user interaction.
Security professionals should consider this vulnerability in relation to CWE-79 which specifically addresses cross-site scripting flaws in web applications. The ATT&CK framework categorizes this type of vulnerability under T1059.007 for scripting languages and T1566 for spearphishing with attachments, as attackers may use this weakness to deliver malicious payloads that can later be executed in victim browsers. Organizations using this Education LMS version should immediately implement input sanitization measures, employ proper output escaping techniques, and consider implementing content security policies to mitigate the risk of exploitation.
Mitigation strategies should include comprehensive input validation that strips or escapes potentially dangerous characters, implementation of proper output encoding for all dynamic content, and deployment of web application firewalls to detect and block suspicious script injection attempts. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities throughout the application codebase. Additionally, users should be educated about the risks of interacting with untrusted content within the system and administrators should monitor for unusual activities that might indicate exploitation attempts. The vulnerability affects all versions through 0.0.7, making immediate patching or workaround implementation essential for maintaining system integrity and user data protection.