CVE-2011-1133
Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code via plugins/ExtendedFileManager/backend.php.
Date published : 2019-11-05
https://blog.s9y.org/archives/224-Important-Security-Update-Serendipity-1.5.5-released.html