CVE-2024-25221 in Task Manager App
Summary
by MITRE • 02/14/2024
A cross-site scripting (XSS) vulnerability in Task Manager App v1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Note Section parameter at /TaskManager/Tasks.php.
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Analysis
by VulDB Data Team • 06/09/2025
This cross-site scripting vulnerability exists within the Task Manager App version 1.0 where insufficient input validation and output encoding mechanisms fail to properly sanitize user-supplied data submitted through the Note Section parameter. The flaw occurs at the /TaskManager/Tasks.php endpoint where the application directly incorporates user-provided content into web pages without adequate sanitization, creating an environment where malicious actors can inject harmful scripts that execute in the context of other users' browsers. The vulnerability specifically affects the Note Section parameter which is processed server-side and subsequently rendered back to users without proper HTML escaping or content validation measures.
The technical exploitation of this vulnerability follows standard XSS attack patterns where an attacker crafts a malicious payload containing script code within the Note Section field. When other users view the affected task entry, their browsers execute the injected JavaScript code, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This represents a classic reflected XSS vulnerability where the malicious input is immediately reflected back to users without proper sanitization. The vulnerability aligns with CWE-79 which defines Cross-Site Scripting as a weakness where applications fail to properly validate or encode user-supplied data before incorporating it into dynamically generated content.
The operational impact of this vulnerability extends beyond simple script execution as it creates persistent security risks for all users interacting with the Task Manager application. Attackers could leverage this vulnerability to impersonate legitimate users, access sensitive task data, modify project information, or establish persistent backdoors through more sophisticated attack vectors. The attack surface is particularly concerning given that task management applications typically contain sensitive business information, user credentials, and operational data that could be compromised through successful exploitation. This vulnerability also aligns with ATT&CK technique T1566 which describes social engineering attacks that can be facilitated through web-based vulnerabilities.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application stack. The most effective immediate solution involves sanitizing all user inputs through proper HTML escaping before rendering content in web pages, implementing Content Security Policy headers to limit script execution, and employing input validation that rejects potentially malicious payloads. Additionally, the application should adopt a principle of least privilege by ensuring that user inputs are properly validated against expected data formats and lengths. Regular security testing including automated scanning and manual penetration testing should be implemented to identify similar vulnerabilities across the application. The fix should also include proper error handling that prevents information disclosure through error messages that might reveal system details to attackers.