CVE-2026-8172 Simple Basic Contact Form <= 20250114 - Reflected XSS
Unauthenticated attackers can execute arbitrary scripts in site visitors' browsers via crafted links due to improper input escaping in the contact form.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-8172?
CVE-2026-8172 is a high-severity cross-site scripting vulnerability in Unknown Simple Basic Contact Form, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Simple Basic Contact Form WordPress plugin through 20250114 does not escape user-supplied input before reflecting it into the contact form output on validation errors, leading to a Reflected Cross-Site Scripting vulnerability that unauthenticated attackers can exploit against site visitors via a crafted link or cross-site form submission.
Which versions are affected by CVE-2026-8172?
How do I fix CVE-2026-8172?
No fix has been published for CVE-2026-8172 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-2026-8172 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8172 exists.
Sources
Also known as GHSA-x74w-29rh-ccvr.