CVE-2026-59559 Cross-site scripting in RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg
A subscriber can inject malicious scripts into the RT Mega Menu 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-2026-59559?
CVE-2026-59559 is a medium-severity cross-site scripting vulnerability in themewant RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg, published on 27 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
Subscriber Cross Site Scripting (XSS) in RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg <= 1.5.1 versions.
Weakness: CWE-79
Which versions are affected by CVE-2026-59559?
How do I fix CVE-2026-59559?
No fix has been published for CVE-2026-59559 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-2026-59559 being exploited?
There is no known exploitation of CVE-2026-59559 in the wild and no public exploit code.
Sources
Also known as GHSA-wxmx-p29w-8898.