CVE-2018-10298 : Security Advisory and Response

Discuz! DiscuzX up to X3.4 is vulnerable to reflected cross-site scripting (XSS) attacks through the forum.php?mod=post&action=newthread endpoint due to content restrictions lacking in the data/template/1_diy_portal_view.tpl.php file.

Understanding CVE-2018-10298

This CVE identifies a reflected XSS vulnerability in Discuz! DiscuzX up to version X3.4.

What is CVE-2018-10298?

The vulnerability in Discuz! DiscuzX up to X3.4 allows for reflected cross-site scripting (XSS) attacks through the forum.php?mod=post&action=newthread endpoint due to inadequate content restrictions.

The Impact of CVE-2018-10298

The vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-10298

Discuz! DiscuzX up to X3.4 is susceptible to a reflected XSS vulnerability.

Vulnerability Description

The issue arises from the lack of content restrictions in the data/template/1_diy_portal_view.tpl.php file.

Affected Systems and Versions

Product: Discuz! DiscuzX
Versions affected: up to X3.4

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious links that, when clicked by users, execute unauthorized scripts in their browsers.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2018-10298.

Immediate Steps to Take

Implement input validation and output encoding to prevent XSS attacks.
Regularly monitor and update security configurations.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users and administrators about safe browsing practices.

Patching and Updates

Apply patches and updates provided by the software vendor to address the vulnerability.