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.
History

Wed, 14 Oct 2026 16:30:00 +0000


Sun, 20 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Themewant
Themewant rt Mega Menu – Mega Menu Builder For Elementor & Gutenberg
Wordpress
Wordpress wordpress
Vendors & Products Themewant
Themewant rt Mega Menu – Mega Menu Builder For Elementor & Gutenberg
Wordpress
Wordpress wordpress

Fri, 18 Sep 2026 02:30:00 +0000

Type Values Removed Values Added
Description 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.
Title RT Mega Menu <= 1.5.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via rtmega_update_menu_options AJAX Action
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-09-18T02:27:53.075Z

Updated: 2026-10-14T16:21:20.255Z

Reserved: 2026-07-06T12:04:45.770Z

Link: CVE-2026-14855

cve-icon Vulnrichment

Updated: 2026-09-18T14:29:38.493Z

cve-icon NVD

Status : Deferred

Published: 2026-09-18T03:16:33.040

Modified: 2026-10-14T17:18:26.553

Link: CVE-2026-14855

cve-icon Redhat

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