WordPress security changelog
CRITICAL CVE-2020-25213 Analyzed

Wp File Manager: A security weakness

Wp File Manager is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 10.0 CVSS 3.1 · cve@mitre.org
NVD score 9.8 CVSS 3.1 · nvd@nist.gov
Component
Wp File Manager
Plugin slug
wp-file-manager
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Sep 09, 2020
Weakness
CWE-434 — Unrestricted Upload of File with Dangerous Type

This CVE was published Sep 09, 2020 and is one of 6 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Wp File Manager 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 File Manager (wp-file-manager) plugin before 6.9 for WordPress allows remote attackers to upload and execute arbitrary PHP code because it renames an unsafe example elFinder connector file to have the .php extension. This, for example, allows attackers to run the elFinder upload (or mkfile and put) command to write PHP code into the wp-content/plugins/wp-file-manager/lib/files/ directory. This was exploited in the wild in August and September 2020.

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

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

References

Primary and upstream sources