Wp Fastest Cache: Arbitrary file deletion

Wp Fastest Cache is affected by arbitrary file deletion. Exposure depends on how the affected operation is made reachable by the site. A successful request can remove files outside the intended scope and may make the site unavailable.

CVE / CNA score 6.5 CVSS · cve@mitre.org

NVD score 6.5 CVSS 3.0 · nvd@nist.gov

Component: Wp Fastest Cache
Plugin slug: wp-fastest-cache
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Jul 29, 2019
Weakness: CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Jul 29, 2019 and is one of 31 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Wp Fastest 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 WP Fastest Cache plugin through 0.8.9.0 for WordPress allows remote attackers to delete arbitrary files because wp_postratings_clear_fastest_cache and rm_folder_recursively in wpFastestCache.php mishandle ../ in an HTTP Referer header.

NVD vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

References

Update, patch or deactivate.

Technical description

Primary and upstream sources