WordPress security changelog
HIGH CVE-2023-4141 Modified

WP Ultimate CSV Importer: Code execution

WP Ultimate CSV Importer is affected by code execution. Exploitation requires an authenticated WordPress account. Successful exploitation can run attacker-controlled code in the WordPress hosting account.

CVE / CNA score 8.0 CVSS 3.1 · security@wordfence.com
NVD score 8.8 CVSS 3.1 · nvd@nist.gov
Component
WP Ultimate CSV Importer
Plugin slug
wp-ultimate-csv-importer
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 04, 2023
Weakness
CWE-94 — Improper Control of Generation of Code ('Code Injection')

This CVE was published Aug 04, 2023 and is one of 14 known issues for this plugin.

What to do

Update, patch or deactivate.

Update WP Ultimate CSV Importer 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 Ultimate CSV Importer plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 7.9.8 via the '->cus2' parameter. This allows authenticated attackers with author-level permissions or above, if the administrator previously grants access in the plugin settings, to create a PHP file and execute code on the server. The author resolved this vulnerability by removing the ability for authors and editors to import files, please note that this means php file creation is still allowed for site administrators, use the plugin with caution.

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

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

References

Primary and upstream sources