CVE-2026-15385
RT Mega Menu < 1.5.2 - Subscriber+ Stored XSS via Menu Item CSS
- State
- Published
- Severity
- 5.4 Medium
- Published
- Aug 2, 2026
- Updated
- Aug 3, 2026
- Reserved
- Jul 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
RT Mega MenuUnknown |
|
References
- https://wpscan.com/vulnerability/b13b19c6-b6e1-45eb-95f3-ac334bda8b84/exploitvdb-entrytechnical-description
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