CVE-2026-42728 WordPress HT Contact Form 7 plugin <= 2.8.2 - Cross Site Scripting (XSS) vulnerability
Attackers can inject malicious scripts into the HT Contact Form 7 plugin, potentially compromising user sessions or site integrity.
- 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-2026-42728?
CVE-2026-42728 is a high-severity cross-site scripting vulnerability in HT Contact Form 7, published on 27 May 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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in HT Plugins HT Contact Form 7 ht-contactform allows Stored XSS.This issue affects HT Contact Form 7: from n/a through <= 2.8.2.
Weakness: CWE-79
Which versions are affected by CVE-2026-42728?
How do I fix CVE-2026-42728?
No fix has been published for CVE-2026-42728 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-2026-42728 being exploited?
There is no known exploitation of CVE-2026-42728 in the wild and no public exploit code.
Sources
Also known as GHSA-9m37-mfhg-pv2m.