CVE-2026-66616 WordPress Form Maker by 10Web plugin <= 1.15.49 - Cross Site Scripting (XSS) vulnerability

High 7.1 Published Updated

Stored XSS in Form Maker by 10Web allows attackers to inject malicious scripts into web pages viewed by other users.

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-2026-66616?

CVE-2026-66616 is a high-severity cross-site scripting vulnerability in Form Maker by 10Web, published on 20 Aug 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 10Web Form Maker by 10Web form-maker allows Stored XSS.This issue affects Form Maker by 10Web: from n/a through 1.15.49.

Weakness: CWE-79

Which versions are affected by CVE-2026-66616?

How do I fix CVE-2026-66616?

No fix has been published for CVE-2026-66616 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-2026-66616 being exploited?

There is no known exploitation of CVE-2026-66616 in the wild and no public exploit code.

Sources

Also known as GHSA-55jw-g6cw-mv99.

Is CVE-2026-66616 in your software?

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