Import all XML, CSV & TXT into WordPress < 6.4.2 - Missing Authorization

2022-01-17 00:00
WPScanTeam

Strategic Overview

Status
Patched in 6.4.2
Affected Plugin
WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import
Affected Version
<= 6.4.1
CVSS
7.1High
Weakness type
CWE-862 · Missing Authorization
CVE
CVE pending
View all WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import vulnerabilities

At a glance

This record tracks a high-severity Missing Authorization vulnerability in the WP Ultimate CSV Importer WordPress plugin, affecting versions <= 6.4.1. It carries a CVSS score of 7.1 (reachable over the network; low attack complexity; high integrity impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 6.4.2; sites on affected versions should update now. Disclosed January 2022, reported by WPScanTeam.

Vulnerability Overview

The Import all XML, CSV & TXT into WordPress plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the disable_main_mode function in versions up to, and including, 6.4.1. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to delete arbitrary site options.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on integrity.

CWE-862: Missing Authorization

Reaching this weakness in WP Ultimate CSV Importer <= 6.4.1 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For WP Ultimate CSV Importer the fix is 6.4.2: builds <= 6.4.1 are affected, anything from 6.4.2 onward is not.

Remediation

Update to version 6.4.2, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: WP Ultimate CSV Importer 6.4.2 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/69725919-490c-4357-872c-d8112af5fe40

Related records

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