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

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-05 · updated 2026-08-12
Weakness: CWE-434

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.

Affected products

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

References

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=
https://www.wordfence.com/threat-intel/vulnerabilities/id/9ccdf08b-8b74-4b58-8779-3b07ef2d7b2f?source=cve

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