CVE-2015-9402

Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin <= 1.5.58 - Arbitrary File Upload

2015-11-17 00:00

Strategic Overview

Status: Patched in 1.5.59
Affected Plugin: Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin
Affected Version: < 1.5.59
CVSS: 8.8High
Weakness type: CWE-434 · Unrestricted Upload of File with Dangerous Type
CVE: CVE-2015-9402

View all Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin vulnerabilities

At a glance

CVE-2015-9402 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin WordPress plugin, affecting versions < 1.5.59. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.5.59; sites on affected versions should update now. Disclosed November 2015, reported by Panagiotis Vagenas.

Vulnerability Overview

The users-ultra plugin before 1.5.59 for WordPress has uultra-form-cvs-form-conf arbitrary file upload.

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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-434: Unrestricted Upload of File with Dangerous Type

Reaching this weakness in Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin < 1.5.59 takes a caller who can reach the endpoint. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.

If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin the fix is 1.5.59: builds < 1.5.59 are affected, anything from 1.5.59 onward is not.

Remediation

Update to version 1.5.59, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin 1.5.59 closes this, and updating the plugin is the step that ends it.

Firewall
Scanner
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2015-9402 https://www.wordfence.com/threat-intel/vulnerabilities/id/ef4134a1-e2c6-495a-bc00-cc8cd783cd7a https://nvd.nist.gov/vuln/detail/CVE-2015-9402

Related records

Other vulnerabilities in Users Ultra Membership, Users Community and Member Profiles With PayPal Integration Plugin

CVSS Vector

8.8

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

Base

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

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