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TI-2026-78566 Aliases CVE-2026-81813GHSA-grh6-fqc7-f8f5

Stored XSS in Elementor Website Builder via SVG sanitizer bypass

Priority LOW 32CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

The Elementor Website Builder WordPress plugin before 4.3.5 does not sanitize the text content of SVG files, checking only their elements and attributes (CWE-79). A user with the Contributor role or higher can store a payload that breaks out when the SVG is rendered inline and runs in the browser of any user who views the page. Execution is specific to Chromium-based browsers, and Firefox is not affected. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Elementor Website Builder WordPress plugin before 4.3.5 does not sanitize the text content of SVG files, checking only their elements and attributes, allowing users with the Contributor role and above to store a payload which breaks out when the SVG is rendered inline in a page and executes in the browser of any user viewing it. Execution is specific to Chromium-based browsers; Firefox is not affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00412 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Elementor Website Builder (Unknown): 4.3.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownElementor Website Builderbefore 4.3.54.3.5Patch availableCNA
  • Elementor Website Builder VendorUnknown Affected before 4.3.5 Fixed in 4.3.5 Patch available CNA

Remediation

Elementor Website Builder 4.3.5 fixes the flaw, so update to that version or later. Versions from 0 before 4.3.5 are affected.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Elementor Website Builder (Unknown) Fixed in 4.3.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Elementor Website Builder 4.3.5

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-78565 Stored cross-site scripting in Elementor via SVG uploadsPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-81813
  2. 2026-10-21 Alias added: GHSA-grh6-fqc7-f8f5

References

Exploit 1

Sources

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