Software PBLang 4.65 pmpshow.php XSS vulnerability

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 [] HRG - Hackerlounge Research Group 
 [] Release: HRG002 
 [] Friday 11-02-05  
 [] Software PBLang 4.65 pmpshow.php XSS 
vulnerability  
 []  
 [] The author can't be held responsible for any 
damage  
 [] done by a reader. You have your own resonsibility  
 [] Please use this document like it's meant to.  
 []  
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 Vulnerable: PBLang 4.65 (current) (and earlier?)  
  
  
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 General information:  
  
 PBLang is an international BBS-software based on 
PHP. It does not require any database but bases on a 
flatfile system. Many professional features. More 
info on the project website.  
  
  
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 Description:  
  
 pmpshow.php shows the pm's a user has received, 
however, the body of the received PM is not checked 
for any harmfull characters like < > and ". An 
attacker could steal sessions or do other things with 
javascript.  
  
  
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 Proof Of Concept:  
  
 Type "&lt;script 
language="javascript">alert("Hackerlounge.com pwns 
joo");&lt;/script&gt;" in the body of the PM your going to 
send a victim. An alertbox saying "Hcakerlounge.com 
pwns joo" should pop up.  
  
  
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 Fix and Vendor status:  
  
The vendor has been notified and a patch is 
"pending". 
  
  
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 [][][][][][][][][][][][][][][][][][][][][][][][][][]
[][][]  
 []  
 [] HRG - Hackerlounge Research Group 
 [] Release: HRG002 
 [] Friday 11-02-05  
 [] Software PBLang 4.65 pmpshow.php XSS 
vulnerability  
 []  
 [] The author can't be held responsible for any 
damage  
 [] done by a reader. You have your own resonsibility  
 [] Please use this document like it's meant to.  
 []  
 [][][][][][][][][][][][][][][][][][][][][][][][][][]
[][][]