CVE-2023-4139

WP Ultimate CSV Importer <= 7.9.8 - Sensitive Information Exposure via Directory Listing

2023-08-03 00:00

Strategic Overview

Status: Patched in 7.9.9
Affected Plugin: WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import
Affected Version: <= 7.9.8
CVSS: 7.5High
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2023-4139

View all WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import vulnerabilities

At a glance

CVE-2023-4139 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the WP Ultimate CSV Importer WordPress plugin, affecting versions <= 7.9.8. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 7.9.9; sites on affected versions should update now. Disclosed August 2023, reported by István Márton.

Vulnerability Overview

The WP Ultimate CSV Importer plugin for WordPress is vulnerable to Sensitive Information Exposure via Directory Listing due to missing restriction in export folder indexing in versions up to, and including, 7.9.8. This makes it possible for unauthenticated attackers to list and view exported files.

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 privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in WP Ultimate CSV Importer <= 7.9.8 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For WP Ultimate CSV Importer the fix is 7.9.9: builds <= 7.9.8 are affected, anything from 7.9.9 onward is not.

Remediation

Update to version 7.9.9, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: WP Ultimate CSV Importer 7.9.9 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-4139 https://www.wordfence.com/threat-intel/vulnerabilities/id/6404476e-0c32-4f8e-882f-6a1785ba5748 https://nvd.nist.gov/vuln/detail/CVE-2023-4139

Related records

Same weakness class

Other vulnerabilities in WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import

CVSS Vector

7.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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