CVE-2026-57373 WordPress Funnel Kit Funnel Builder PRO plugin <= 3.15.0.4 - Cross Site Scripting (XSS) vulnerability
An attacker can inject malicious scripts into the Funnel Kit Funnel Builder PRO plugin, potentially compromising user sessions or site integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-57373?
CVE-2026-57373 is a medium-severity cross-site scripting vulnerability in Wisetr INC. Funnel Kit Funnel Builder PRO, published on 23 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Customer Cross Site Scripting (XSS) in Funnel Kit Funnel Builder PRO <= 3.15.0.4 versions.
Weakness: CWE-79
Which versions are affected by CVE-2026-57373?
How do I fix CVE-2026-57373?
No fix has been published for CVE-2026-57373 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-2026-57373 being exploited?
There is no known exploitation of CVE-2026-57373 in the wild and no public exploit code.
Sources
Also known as GHSA-x9p9-vmvc-5jr4.