CVE-2026-81813: CWE-79 Cross-Site Scripting (XSS) in Elementor Website Builder
Description
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.
CVSS v3.1
Score 6.8medium
Affected software
Elementor Website Builder
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-81813 is a CWE-79 Cross-Site Scripting vulnerability in the Elementor Website Builder WordPress plugin prior to version 4.3.5. The plugin fails to sanitize the text content of SVG files, only validating elements and attributes. This allows users with Contributor role or above to store a malicious payload within an SVG file. When the SVG is rendered inline on a page, the payload executes in the browser of any user viewing it, specifically targeting Chromium-based browsers. Firefox is not affected by this issue.
Potential Impact
An attacker with Contributor or higher privileges can inject malicious scripts via SVG files that execute in the browsers of users viewing the affected pages. This can lead to script execution in Chromium-based browsers, potentially enabling session hijacking, defacement, or other client-side attacks. Firefox users are not impacted by this vulnerability.
Mitigation Recommendations
Upgrade the Elementor Website Builder plugin to version 4.3.5 or later, where this vulnerability is fixed. Users should apply this official fix to prevent exploitation. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-27T12:40:44.712Z
- State
- PUBLISHED
Threat ID: 6ad855df2cdf04f656afec35
Added to database: 10/21/2026, 06:04:15 UTC
Last enriched: 10/21/2026, 06:19:12 UTC
Last updated: 10/21/2026, 13:40:20 UTC
Views: 7
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