CVE-2026-6127 — Cross-Site Scripting (XSS)

CVE-2026-6127 — Cross-Site Scripting (XSS)

CVE-2026-6127 — The Elementor Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the _elementor_data meta field in versions up to, and including, 4.0.4. This is due to insufficient input sanitization when processing form-encoded REST API requests. The plugin regist

What This Means For You

  • If your environment is affected by CWE-79, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-6127 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

high T1190 Initial Access

WordPress Elementor _elementor_data Stored XSS Attempt — CVE-2026-6127

Sigma YAML — free preview
title: WordPress Elementor _elementor_data Stored XSS Attempt — CVE-2026-6127
id: scw-2026-05-01-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-6127 by sending a PATCH request to the WordPress REST API containing '_elementor_data' in the query string. This specific pattern targets the vulnerability where the _elementor_data meta field is processed without proper sanitization when form-encoded REST API requests are made, allowing for Stored Cross-Site Scripting.
author: SCW Feed Engine (AI-generated)
date: 2026-05-01
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-6127/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-method:
          - 'PATCH'
      uri|contains:
          - '/wp-json/wp/v2/posts/'
      cs-uri-query|contains:
          - '_elementor_data'
  selection_indicators:
      cs-uri-query|contains:
          - 'json_decode()'
      condition: selection AND selection_indicators
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-6127 vulnerability CVE-2026-6127
CWE-79 weakness CWE-79
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 01, 2026 at 09:16 UTC

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