WordPress security changelog
HIGH CVE-2023-4243 Modified

site, granted they are packaged as a valid: Dangerous file upload

site, granted they are packaged as a valid is affected by dangerous file upload. Exploitation requires an authenticated WordPress account. Successful exploitation can place attacker-controlled executable content on the server and may lead to full site compromise.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
site, granted they are packaged as a valid
Plugin slug
full-customer
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 09, 2023
Weakness
CWE-285 — Improper Authorization
CWE-434 — Unrestricted Upload of File with Dangerous Type

This CVE was published Aug 09, 2023 and is one of 7 known issues for this plugin.

Update, patch or deactivate.

Update site, granted they are packaged as a valid 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.

Technical description

The FULL - Customer plugin for WordPress is vulnerable to Arbitrary File Upload via the /install-plugin REST route in versions up to, and including, 2.2.3 due to improper authorization. This allows authenticated attackers with subscriber-level permissions and above to execute code by installing plugins from arbitrary remote locations including non-repository sources onto the site, granted they are packaged as a valid WordPress plugin.

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

Primary and upstream sources