Several vulnerabilities have been found in horde3, the horde web application framework. The Common Vulnerabilities and Exposures project identifies the following problems: Gunnar Wrobel discovered a directory traversal vulnerability, which allows attackers to include and execute arbitrary local files via the driver parameter in Horde_Image. It was discovered that an attacker could perform a cross-site scripting attack via the contact name, which allows attackers to inject arbitrary html code. This requires that the attacker has access to create contacts. It was discovered that the horde XSS filter is prone to a cross-site scripting attack, which allows attackers to inject arbitrary html code. This is only exploitable when Internet Explorer is used.