CVE-2018-5331 Explained : Impact and Mitigation

Discuz! DiscuzX X3.4 has a Cross-Site Scripting (XSS) vulnerability that can be exploited through the view parameter in the include/space/space_poll.php file.

Understanding CVE-2018-5331

This CVE involves a specific XSS vulnerability in Discuz! DiscuzX X3.4.

What is CVE-2018-5331?

The vulnerability allows attackers to execute malicious scripts in a victim's browser by injecting code through a specific parameter.

The Impact of CVE-2018-5331

Exploiting this vulnerability can lead to unauthorized access, data theft, and potential manipulation of content on the affected website.

Technical Details of CVE-2018-5331

This section provides more technical insights into the CVE.

Vulnerability Description

The XSS vulnerability in Discuz! DiscuzX X3.4 occurs due to inadequate input validation in the view parameter of the space_poll.php file.

Affected Systems and Versions

Product: Discuz! DiscuzX X3.4
Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a mod=space do=poll request to home.php, triggering the execution of malicious scripts.

Mitigation and Prevention

Protecting systems from CVE-2018-5331 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable the affected functionality if possible until a patch is available.
Implement input validation and output encoding to prevent XSS attacks.

Long-Term Security Practices

Regularly update and patch the software to address security vulnerabilities.
Conduct security audits and penetration testing to identify and mitigate potential risks.

Patching and Updates

Monitor official sources for security advisories and apply patches promptly to secure the system.