W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary Code Execution

2026-06-29 00:00

Ananda Dhakal

Strategic Overview

Status

Patched in 2.10.0

Affected PluginW3 Total Cache

Affected Version<= 2.9.4

CVSS8.1High

CVECVE-2026-57623

View all W3 Total Cache vulnerabilities

Vulnerability Overview

The W3 Total Cache plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.9.4. This makes it possible for unauthenticated attackers to execute code on the server.

Technical Analysis

REMEDIATION: Update to version 2.10.0, or a newer patched version --- IDENTIFIER: CWE-94 (Improper Control of Generation of Code ('Code Injection')) The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

External References

https://www.cve.org/CVERecord?id=CVE-2026-57623 https://www.wordfence.com/threat-intel/vulnerabilities/id/b360f121-449f-43a8-b5e4-1cffddbaac77

CVSS Vector

8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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