WordPress security changelog
CRITICAL CVE-2026-57623 Deferred

W3 Total Cache: Code execution

W3 Total Cache is affected by code execution. The vulnerable path is reachable without authentication. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is n/a through 2.9.4.

CVE / CNA score 9.0 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
W3 Total Cache
Plugin slug
w3-total-cache
Affected
n/a through 2.9.4
Safe version
2.10.0
Published
Jul 02, 2026
Weakness
CWE-1284 — Improper Validation of Specified Quantity in Input

This CVE was published Jul 02, 2026 and is one of 19 known issues for this plugin.

Update, patch or deactivate.

Update W3 Total Cache to 2.10.0 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 Arbitrary Code Execution in W3 Total Cache <= 2.9.4 versions.

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

Primary and upstream sources