CVE-2025-11238 Watu Quiz <= 3.4.4 - Unauthenticated Stored Cross-Site Scripting via HTTP Referer
Unauthenticated attackers can inject arbitrary scripts via HTTP Referer header in Watu Quiz plugin when Save source URL is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11238?
CVE-2025-11238 is a high-severity cross-site scripting vulnerability in prasunsen Watu Quiz, published on 25 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-11238?
How do I fix CVE-2025-11238?
No fix has been published for CVE-2025-11238 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-11238 being exploited?
There is no known exploitation of CVE-2025-11238 in the wild and no public exploit code.
Sources
Also known as GHSA-rx6j-64vr-p2r7.