CVE-2026-107321

Medium

Description

The W3 Total Cache WordPress plugin before 2.10.6 does not confine a media-import file copy to the document root, nor enforce an effective file-type restriction on it, allowing users with the Author role or higher to plant content that, once an administrator runs the import, copies an arbitrary server-readable file into a publicly served directory, exposing it to unauthenticated retrieval.

SeverityMedium
CVSS5.4
Exploit probability15. percentile0.2%
ProductW3 Total Cache
PublishedOct 10, 2026
First seenOct 10, 2026

How to fix

Update
  • W3 Total Cache2.10.6 or later

Affected products

ProductAffected versionsFixed in
W3 Total Cachev < 2.10.62.10.6

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