CVE-2026-6147CWE-434unrestricted-file-upload

CVE-2026-6147

High · published August 5, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
60.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00952 · 60.9th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-08-05T12:16Z
References (4)
https://plugins.trac.wordpress.org/browser/lightsyncpro/tags/2.0.1/includes/admin/class-admin.php#L6755 · [email protected]https://plugins.trac.wordpress.org/browser/lightsyncpro/tags/2.0.1/includes/admin/class-admin.php#L6814 · [email protected]https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3507389%40lightsyncpro%2Ftrunk&old=3476495%40lightsyncpro%2Ftrunk&sfp_email=&sfph_mail= · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/9ccdf08b-8b74-4b58-8779-3b07ef2d7b2f?source=cve · [email protected]
EPSS history
Timeline
  • 05 AUG 06:37Z
    LightSync Pro <= 2.1.6 - Authenticated (Author+) Arbitrary File Upload
    cvelistv5