W3 Total Cache: Cross-site scripting

W3 Total Cache is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 4.3 CVSS · cve@mitre.org

NVD score 4.3 CVSS 2.0 · nvd@nist.gov

Component: W3 Total Cache
Plugin slug: w3-total-cache
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Dec 19, 2014
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Dec 19, 2014 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

Cross-site scripting (XSS) vulnerability in the W3 Total Cache plugin before 0.9.4.1 for WordPress, when debug mode is enabled, allows remote attackers to inject arbitrary web script or HTML via the "Cache key" in the HTML-Comments, as demonstrated by the PATH_INFO to the default URI.

NVD vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

References

Update, patch or deactivate.

Technical description

Primary and upstream sources