CVE-2021-41918 : Security Advisory and Response
Learn about CVE-2021-41918 affecting webTareas version 2.4 and earlier. Find out the impact, affected systems, exploitation method, and mitigation steps to prevent this Reflected Cross-Site Scripting vulnerability.
webTareas version 2.4 and earlier is vulnerable to a Reflected Cross-Site Scripting attack due to incorrect sanitization of user inputs.
Understanding CVE-2021-41918
What is CVE-2021-41918?
webTareas version 2.4 and earlier allow an authenticated user to inject arbitrary web script or HTML, leading to a Reflected Cross-Site Scripting vulnerability.
The Impact of CVE-2021-41918
The vulnerability enables attackers to execute malicious scripts in the context of the victim's session, potentially compromising sensitive information.
Technical Details of CVE-2021-41918
Vulnerability Description
- Incorrect data sanitization in webTareas version 2.4 and earlier
- Allows an authenticated user to execute arbitrary web script or HTML
Affected Systems and Versions
- Product: webTareas
- Versions affected: 2.4 and earlier
Exploitation Mechanism
- Attackers inject malicious scripts through user-supplied data
- Vulnerable endpoints echo URLs back in responses
Mitigation and Prevention
Immediate Steps to Take
- Update webTareas to the latest version
- Implement input validation and proper data sanitization
Long-Term Security Practices
- Regular security assessments and code reviews
- Train users and administrators on identifying and avoiding XSS attacks
Patching and Updates
- Apply patches and security updates promptly to fix vulnerabilities