WordPress security changelog
CRITICAL CVE-2026-52703 Deferred

FastDup: Filesystem traversal

FastDup is affected by filesystem traversal. The vulnerable path is reachable without authentication. A crafted path can escape the intended directory and reach files or directories elsewhere on the server. The published affected range is n/a through 2.7.2.

CVE / CNA score 9.6 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
FastDup
Plugin slug
fastdup
Affected
n/a through 2.7.2
Safe version
2.7.3
Published
Jun 15, 2026
Weakness
CWE-35 — Path Traversal: '.../...//'

This CVE was published Jun 15, 2026 and is one of 5 known issues for this plugin.

Update, patch or deactivate.

Update FastDup to 2.7.3 or later, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Unauthenticated Path Traversal in FastDup <= 2.7.2 versions.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary and upstream sources