N5 Upload Form <= 1.0 - Arbitrary File Upload

2021-03-26 00:00

Jin Huang

Strategic Overview

Status

Unpatched

Affected PluginN5 Upload Form

Affected Version<= 1.0

CVSS9.8Critical

CVECVE-2021-24223

View all N5 Upload Form vulnerabilities

Vulnerability Overview

The N5 Upload Form WordPress plugin through 1.0 suffers from an arbitrary file upload issue in page where a Form from the plugin is embed, as any file can be uploaded. The uploaded filename might be hard to guess as it's generated with md5(uniqid(rand())), however, in the case of misconfigured servers with Directory listing enabled, accessing it is trivial.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- 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-2021-24223 https://www.wordfence.com/threat-intel/vulnerabilities/id/121afcc4-754c-4f4b-8b02-9b5a4a248041

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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