HTB22862: Path disclosure in NextGEN Gallery wordpress plugin

Vulnerability ID: HTB22862
Reference: http://www.htbridge.ch/advisory/path_disclosure_in_nextgen_gallery_wordpress_plugin.html
Product: NextGEN Gallery wordpress plugin
Vendor: Alex Rabe ( http://alexrabe.de/ )
Vulnerable Version: 1.7.3
Vendor Notification: 15 February 2011
Vulnerability Type: Path disclosure
Status: Fixed by Vendor
Risk level: Low
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)

Vulnerability Details:
The vulnerability exists due to failure in the "/wp-content/plugins/nextgen-gallery/xml/ajax.php" scripts, it's possible to generate an error that will reveal the full path of the script.
A remote user can determine the full path to the web root directory and other potentially sensitive information.

The following PoC is available:

http://[host]/wp-content/plugins/nextgen-gallery/xml/ajax.php?galleryid=1&p=1&type=browser
http://[host]/wp-content/plugins/nextgen-gallery/xml/ajax.php?galleryid=1&p=1&type=gallery

Solution: Upgrade to the most recent version