CVE-2017-6486 Explained : Impact and Mitigation
Learn about CVE-2017-6486, a Cross-Site Scripting (XSS) flaw in reasoncms versions prior to 4.7.1. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A security flaw known as Cross-Site Scripting (XSS) has been found in reasoncms versions prior to 4.7.1. The vulnerability allows attackers to execute unauthorized HTML and script code within a web browser.
Understanding CVE-2017-6486
This CVE involves a Cross-Site Scripting (XSS) vulnerability in reasoncms versions before 4.7.1.
What is CVE-2017-6486?
CVE-2017-6486 is a security flaw in reasoncms that arises from inadequate filtering of user-inputted data, allowing attackers to execute unauthorized code in a web browser.
The Impact of CVE-2017-6486
If exploited, attackers can inject and execute malicious HTML and script code within the context of the compromised website, potentially leading to various security risks.
Technical Details of CVE-2017-6486
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in reasoncms versions prior to 4.7.1 stems from insufficient filtration of user-supplied data (nyroModalSel) transmitted to a specific URL within the application.
Affected Systems and Versions
- Affected Version: reasoncms versions before 4.7.1
- Systems: All systems running reasoncms versions prior to 4.7.1
Exploitation Mechanism
Attackers exploit the vulnerability by injecting malicious code into the user-inputted data (nyroModalSel) passed to the vulnerable URL within reasoncms, enabling the execution of unauthorized HTML and script code.
Mitigation and Prevention
Protecting systems from CVE-2017-6486 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update reasoncms to version 4.7.1 or later to mitigate the vulnerability.
- Implement input validation and output encoding to prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and audit web applications for security vulnerabilities.
- Educate developers on secure coding practices to prevent XSS and other common web application vulnerabilities.
Patching and Updates
- Apply patches and updates provided by reasoncms promptly to address security issues and enhance the overall security posture of the system.