full-disclosure - [FD] Reflected XSS in WordPress Download Manager could allow an attacker to do almost anything an admin can (WordPress plugin)

Open Source and information security mailing list archives

Message-ID: <e1d8244af0efdb352f42f01d72ab5039@security.dxw.com>
Date: Fri, 16 Jun 2017 19:51:27 +0000
From: dxw Security <security@....com>
To: fulldisclosure@...lists.org
Subject: [FD] Reflected XSS in WordPress Download Manager could allow an
	attacker to do almost anything an admin can (WordPress plugin)

Details
================
Software: WordPress Download Manager
Version: 2.9.46,2.9.51
Homepage: https://wordpress.org/plugins/download-manager/
Advisory report: https://security.dxw.com/advisories/xss-download-manager/
CVE: Awaiting assignment
CVSS: 5.8 (Medium; AV:N/AC:M/Au:N/C:P/I:P/A:N)

Description
================
Reflected XSS in WordPress Download Manager could allow an attacker to do almost anything an admin can

Vulnerability
================
This plugin outputs $_GET[‘id’] inside HTML without escaping, meaning that anybody able to convince an admin to follow a link can add arbitrary HTML to the page.

Proof of concept
================

Sign in
Activate the plugin
Visit the following URL in a browser without XSS mitigation (i.e. Firefox): http://localhost/wp-admin/admin-ajax.php?action=wpdm_generate_password&id=%3C/script%3E%3Cscript%3Ealert(1)%3C/script%3E

Mitigations
================
Upgrade to version 2.9.52 or later.

Disclosure policy
================
dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/

Please contact us on security@....com to acknowledge this report if you received it via a third party (for example, plugins@...dpress.org) as they generally cannot communicate with us on your behalf.

This vulnerability will be published if we do not receive a response to this report with 14 days.

Timeline
================

2017-03-30: Discovered
2017-05-26: Reported to contact@...den.com
2017-06-09: First response from vendor saying it’s been fixed and an update will be coming soon
2017-06-09: Version 2.9.52 released “Fixed issue with input data formatting”
2017-06-16: Advisory published

Discovered by dxw:
================
Tom Adams
Please visit security.dxw.com for more information.

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