CVE-2026-15650 Cross-site scripting in RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg
Authenticated contributors can inject arbitrary scripts via block attributes, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15650?
CVE-2026-15650 is a medium-severity cross-site scripting vulnerability in themewant RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'pointer_menu_item' Block Attribute in all versions up to, and including, 1.5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload bypasses wp_kses_post filtering applied to post content on save because it contains no HTML tags and survives intact inside the block comment's JSON attributes, reaching the walker unescaped at render time.
Weakness: CWE-79
Which versions are affected by CVE-2026-15650?
How do I fix CVE-2026-15650?
No fix has been published for CVE-2026-15650 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-2026-15650 being exploited?
There is no known exploitation of CVE-2026-15650 in the wild and no public exploit code.
Sources
Also known as GHSA-8vf4-mvr5-cw7w.