Vulnerability · Published Aug 2, 2026 · Assigned by WPScan

CVE-2026-15385RT Mega Menu < 1.5.2 - Subscriber+ Stored XSS via Menu Item CSS

Medium 5.4

In plain English

A medium-severity cross-site scripting in RT Mega Menu from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 86.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

The RT Mega Menu WordPress plugin before 1.5.2 does not perform a capability check on the AJAX action that saves mega-menu configuration and per-menu-item settings; its only gate is a nonce that any logged-in user can read from a standard admin page. A subscriber-level user can therefore enable the mega menu on a site menu and store a menu-item style value that is rendered, without output escaping, into a style attribute on the public navigation. By breaking out of that attribute the user persists a JavaScript event handler that executes for every visitor who hovers the navigation, including administrators, leading to session/site takeover.

Affected products (as reported)

Vendor	Product	Versions
Unknown	RT Mega Menu	0 – before 1.5.2

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/b13b19c6-b6e1-45eb-95f3-ac334bda8b84/ exploit, vdb-entry, technical-description