WooCommerce Upload Files <= 59.3 - Arbitrary File Upload

2021-03-04 00:00

Ram

Strategic Overview

Status

Patched in 59.4

Affected PluginWooCommerce Upload Files

Affected Version< 59.4

CVSS9.8Critical

CVECVE-2021-24171

View all WooCommerce Upload Files vulnerabilities

Vulnerability Overview

The WooCommerce Upload Files WordPress plugin before 59.4 ran a single sanitization pass to remove blocked extensions such as .php. It was possible to bypass this and upload a file with a PHP extension by embedding a "blocked" extension within another "blocked" extension in the "wcuf_file_name" parameter. It was also possible to perform a double extension attack and upload files to a different location via path traversal using the "wcuf_current_upload_session_id" parameter.

Technical Analysis

REMEDIATION: Update to version 59.4, or a newer patched version --- IDENTIFIER: CWE-434 (Unrestricted Upload of File with Dangerous Type) The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24171 https://www.wordfence.com/threat-intel/vulnerabilities/id/e353a269-c7f5-4b6a-9f9e-be459ead0335

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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