Title: WebSVN - Reflected Cross-Site Scripting Author: Jakub Palaczynski Date: 22. February 2016 CVE: CVE-2016-2511 Affected software: ================== WebSVN 2.3.3 Older versions are probably also vulnerable. Description: ============ WebSVN offers a view onto your subversion repositories that's been designed to reflect the Subversion methodology. You can view the log of any file or directory and see a list of all the files changed, added or deleted in any given revision. You can also view the differences between two versions of a file so as to see exactly what was changed in a particular revision.[1] Vulnerability: ************** Reflected Cross-Site Scripting: =============================== Proof of Concept: http://host/websvn/log.php?path=%00"><script>alert(document.domain)</script> Fix: It is adviced to change following line in include/setup.php file: $path = !empty($_REQUEST['path']) ? $_REQUEST['path'] : null; to: $path = !empty($_REQUEST['path']) ? escape($_REQUEST['path']) : null; "escape" function that is used to patch vulnerability was written by the author and can be found in include/command.php file. Reference: ========== [1] Why WebSVN?: http://www.websvn.info/ Contact: ======== Jakub[dot]Palaczynski[at]ingservicespolska[dot]pl