CVE-2026-97315 Responsive Blocks < 2.3.0 - Unauthenticated HTML Injection in Form Notification Email
Unauthenticated attackers can inject arbitrary HTML into form notification emails, enabling phishing attacks against site owners.
- 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-2026-97315?
CVE-2026-97315 is a medium-severity cross-site scripting vulnerability in Unknown Responsive Blocks, published on 14 Oct 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 Responsive Blocks WordPress plugin before 2.3.0 does not sanitise or escape some of the values submitted with its Form block before adding them to the HTML notification email sent to the site owner, allowing unauthenticated users to inject arbitrary HTML, such as phishing links, into that email.
Weakness: CWE-74
Which versions are affected by CVE-2026-97315?
How do I fix CVE-2026-97315?
No fix has been published for CVE-2026-97315 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-2026-97315 being exploited?
There is no known exploitation of CVE-2026-97315 in the wild and no public exploit code.
Sources
Also known as GHSA-cpgh-j438-6wxq.