CVE-2026-6504 — Cross-Site Scripting (XSS)

title: Stored XSS in Royal Elementor Addons via title_tag parameter — CVE-2026-6504
id: scw-2026-05-14-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-6504 by identifying requests to the WordPress AJAX endpoint with the 'action=royal_elementor_ajax' parameter and a 'title_tag' parameter containing typical XSS script tags. This indicates a Stored XSS attack targeting the Royal Elementor Addons and Templates plugin.
author: SCW Feed Engine (AI-generated)
date: 2026-05-14
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-6504/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/wp-admin/admin-ajax.php'
      cs-uri-query|contains:
          - 'action=royal_elementor_ajax'
      cs-uri-query|contains:
          - 'title_tag='
  selection_indicators:
      cs-uri-query|contains:
          - '<script>'
      cs-uri-query|contains:
          - '</script>'
  condition: selection AND selection_indicators
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse