WampServer <= 2.2c (lang) Remote Cross-Site Scripting Vulnerability Vendor: Alter Way Product web page: http://www.wampserver.com Affected version: <= 2.2c (32/64bit) Summary: WampServer is a Windows web development environment. It allows you to create web applications with Apache2, PHP and a MySQL database. Desc: WampServer is vulnerable to cross-site scripting vulnerability. This issue is due to the application's failure to properly sanitize user-supplied input thru the 'lang' parameter (GET) in index.php script. An attacker may leverage any of the cross-site scripting issues to have arbitrary script code executed in the browser of an unsuspecting user in the context of the affected site. This may facilitate the theft of cookie-based authentication credentials, phishing as well as other attacks. ================================================================= /index.php: ----------- 265: if (isset ($_GET['lang'])) 266: { 267: $langue = $_GET['lang']; 268: } ================================================================= Tested on: Microsoft Windows XP Professional SP3 (EN) 32bit Microsoft Windows 7 Ultimate SP1 (EN) 64bit Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Vendor status: [13.02.2012] Vulnerability discovered. [16.02.2012] Vendor notified of the vulnerability. [17.02.2012] Public security advisory released. Advisory ID: ZSL-2012-5072 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5072.php Related Advisory ID: ZSL-2010-4926 Related Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4926.php CVE-2010-0700: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0700 CWE-79: http://cwe.mitre.org/data/definitions/79.html 13.02.2012 --- Dork: "intext:WampServer - Donate - Alter Way" "intitle:WAMPSERVER Homepage" PoC: http://localhost/?lang="><script>alert('zsl')</script> http://localhost/index.php?lang="><script>alert('zsl')</script>