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Watu Quiz Stored Cross-Site Scripting Vulnerability via HTTP Referer

Vulnerability

A stored cross-site scripting vulnerability has been identified in the Watu Quiz plugin for WordPress, affecting versions through 3.4.4. The issue arises from inadequate input sanitization and output escaping when the 'Save source URL' option is activated. This vulnerability allows unauthenticated attackers to inject arbitrary scripts into pages, which are executed when users access the compromised page.

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.

Remediation

Users are advised to update the Watu Quiz plugin to version 3.4.5 or a newer patched version.

Added: Oct 25, 2025, 6:30 AM
Updated: Oct 25, 2025, 6:30 AM

Vulnerability Rating

Custom Algorithm
spread
1.0
impact
1.7
exploitability
7.2
remediation
7.7
relevance
0.8
threat
3.2
urgency
2.9
incentive
1.7

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