SEO Friendly Images Plugin for WordPress contains a flaw that allows a cross-site scripting (XSS) attack. This flaw exists because the seo-friendly-images.class.php script does not validate input to the ‘default_alt’ and ‘default_title’ POST parameters or the request URL before returning it to users. This may allow a remote attacker to create a specially crafted request that would execute arbitrary script code in a user’s browser session within the trust relationship between their browser and the server.