The jNews (com_jnews) component 7.5.1 for Joomla! allows remote attackers to obtain sensitive information via the emailsearch parameter, which reveals the installation path in an error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/75198
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-4200
http://packetstormsecurity.org/files/112233/jNews-7.5.1-Information-Disclosure.html
http://hauntit.blogspot.com/2012/04/en-jnews-jnewscore751-information.html