Answer in brief
CVE-2026-14855 records a Unknown severity vulnerability in RT Mega Menu <= 1.5.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via rtmega_update_menu_options AJAX Action. The current sources do not mark it as known exploited. The current feed maps themewant/RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps themewant/RT Mega Menu – Mega Menu Builder for Elementor & Gutenberg (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| themewant/RT Mega Menu – Mega Menu Builder for Elementor & Gutenberggeneric | 0 | Not reported |
Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 18, 2026
The RT Mega Menu plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'css[left]' parameter in all versions up to, and including, 1.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Quoted source text, attributed separately from HOL analysis.