CVE-2022-3558

Import and export users and customers <= 1.20.4 - Authenticated (Subscriber+) CSV Injection

2022-10-17 00:00

Strategic Overview

Status: Patched in 1.20.5
Affected Plugin: Import and export users and customers
Affected Version: <= 1.20.4
CVSS: 8.0High
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2022-3558

View all Import and export users and customers vulnerabilities

At a glance

CVE-2022-3558 is a high-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Import and export users and customers WordPress plugin, affecting versions <= 1.20.4. It carries a CVSS score of 8.0 (reachable over the network; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.20.5; sites on affected versions should update now. Disclosed October 2022, reported by Adel Bouaricha.

Vulnerability Overview

The Import and export users and customers plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.20.4. This allows subscriber-level attackers to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.

Technical Analysis

The vector marks this flaw as remotely reachable over the network. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-1236: Improper Neutralization of Formula Elements in a CSV File

The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

Remediation

Update to version 1.20.5, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Import and export users and customers 1.20.5 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-3558 https://www.wordfence.com/threat-intel/vulnerabilities/id/50ac32ed-f83c-4afc-aac2-a79c69497091 https://nvd.nist.gov/vuln/detail/CVE-2022-3558

Related records

Other vulnerabilities in Import and export users and customers

CVSS Vector

8.0

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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