wpDiscuz Stored Cross-Site Scripting Vulnerability

Vulnerability

A stored cross-site scripting vulnerability has been identified in wpDiscuz versions prior to 7.6.47. This vulnerability allows authenticated attackers to inject malicious JavaScript by importing a crafted options file that contains unescaped customCss field values. The injected scripts execute on every page when rendered through the options handler, due to inadequate sanitization.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Added: Mar 13, 2026, 8:14 PM
Updated: Mar 13, 2026, 8:14 PM

Vulnerability Rating

Custom Algorithm
spread
3.4
impact
1.7
exploitability
4.7
remediation
7.7
relevance
3.8
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.