[原文]Multiple cross-site scripting (XSS) vulnerabilities in Gregarius 0.5.2 allow remote attackers to inject arbitrary web script or HTML via the (1) rss_query parameter to search.php or (2) tag parameter to tags.php.
Gregarius contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate the 'tag' variable upon submission to the tags.php script. This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.
Upgrade to version 0.5.3 svn or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.