WP Ultimate CSV Importer: Privilege escalation or authentication bypass

WP Ultimate CSV Importer is affected by privilege escalation or authentication bypass. Exploitation requires an authenticated WordPress account. A successful request can grant permissions or access that the caller should not possess.

CVE / CNA score 6.6 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-269 — Improper Privilege Management

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 privilege escalation in versions up to, and including, 7.9.8 due to insufficient restriction on the 'get_header_values' function. This makes it possible for authenticated attackers, with minimal permissions such as an author, if the administrator previously grants access in the plugin settings, to modify their user role by supplying the 'wp_capabilities->cus1' parameter.

CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/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

Update, patch or deactivate.

Technical description

Primary and upstream sources