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TI-2026-05371 Aliases CVE-2026-6127GHSA-4w32-4c6r-m74m

Elementor Website Builder <= 4.0.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via REST API

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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 registers the _elementor_data meta field with show_in_rest but omits a sanitize_callback, relying instead on a rest_pre_insert_post filter (sanitize_post_data function) that only sanitizes JSON-encoded request bodies. When a contributor sends a form-encoded PATCH request to the WordPress REST API, the json_decode() call on the raw body returns null, causing all sanitization to be skipped. The unsanitized data is then stored via update_post_meta() and later output without escaping through multiple widget sinks including the HTML widget's print_unescaped_setting() function. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00225 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ElementorElementor Website Builder – more than just a page builderup to 4.0.4—No fix listedCNA
  • Elementor Website Builder – more than just a page builder VendorElementor Affected up to 4.0.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:elementor:website_builder:*:*:*:*:*:*:*:*——Elementor
  • cpe:2.3:a:elementor:website_builder:*:*:*:*:*:*:*:* Versions — — ·Elementor

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-6127
  2. 2026-10-03 Alias added: GHSA-4w32-4c6r-m74m

References

Other 8

  • TI-2022-01211 Elementor Website Builder 3.6.0 - 3.6.2 - Missing Authorization to Remote Code Execution CVSS 3.1HIGH 8.8
  • TI-2023-00313 Elementor Website Builder < 3.12.2 - Admin+ SQLi CVSS 3.1HIGH 7.2
  • TI-2026-06653 Temporary Login <= 1.0.0 - Authentication Bypass to Account Takeover CVSS 3.1CRITICAL 9.8
  • TI-2023-02927 Elementor Pro <= 3.11.6 - Authenticated(Subscriber+) Privilege Escalation via update_page_option CVSS 3.1HIGH 8.8
  • TI-2020-10317 An issue was discovered in the Elementor Pro plugin before 2.9.4 for WordPress, as… CVSS 3.1CRITICAL 9.9
  • TI-2023-25675 WordPress Elementor plugin <= 3.16.4 - Auth. Arbitrary Attachment Read vulnerability CVSS 3.1CRITICAL 9.8
See all 82 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences