W3 Total Cache: Sensitive information exposure

W3 Total Cache is affected by sensitive information exposure. Exploitation requires at least subscriber-level access. Successful exploitation can disclose data that should not be available to the caller.

CVE / CNA score 8.5 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: W3 Total Cache
Plugin slug: w3-total-cache
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Jan 14, 2025
Weakness: CWE-862 — Missing Authorization

This CVE was published Jan 14, 2025 and is one of 19 known issues for this plugin.

What to do

Update, patch or deactivate.

Update W3 Total Cache to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

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.

Source record

Technical description

The W3 Total Cache plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the is_w3tc_admin_page function in all versions up to, and including, 2.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to obtain the plugin's nonce value and perform unauthorized actions, resulting in information disclosure, service plan limits consumption as well as making web requests to arbitrary locations originating from the web application that can be used to query information from internal services, including instance metadata on cloud-based applications.

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

References

Update, patch or deactivate.

Technical description

Primary and upstream sources