---
id: CVE-2025-11238
title: >-
  The Watu Quiz plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the HTTP Referer header in versions less than, or equal to,
  3.4.4 due to insufficient input sanitization and output escaping when the
  "Save source URL" o…
summary: >-
  The Watu Quiz plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the HTTP Referer header in versions less than, or equal to,
  3.4.4 due to insufficient input sanitization and output escaping when the
  "Save source URL" o…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2025-10-25'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11238'
references:
  - url: 'https://plugins.trac.wordpress.org/changeset/3373855/watu'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/168e7eac-21ad-43ca-93d1-73c38e12bc29?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00256
epssPercentile: 0.15807
ingestedAt: '2026-10-08T11:31:27.578Z'
---

## Overview

The Watu Quiz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the HTTP Referer header in versions less than, or equal to, 3.4.4 due to insufficient input sanitization and output escaping when the "Save source URL" option is enabled. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an user accesses an injected page.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.