CS-Forum 0.81 and prior suffer from XSS, Full path disclosure and SQL injection flaws.
7d7546f688e7b3250812cd4180b1350d36de5342664f6cc7445018a54aa7910e
Cross Site Scripting
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http://[...]/read.php?msg_result=[XSS]
http://[...]/read.php?rep_titre=">[XSS]
Cookies: CSForum_nom=">[XSS]; CSForum_mail=">[XSS]; CSForum_url=">[XSS]
SQL Injection
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http://[...]/read.php?id=1'[SQL_SELECT]&debut=[SQL_LIMIT]
http://[...]/index.php?search=%'[SQL_SELECT]%23
http://[...]/index.php?debut=1[SQL] //Digit -> Without quote
Full Path Disclosure
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http://[...]/index.php?readall=&collapse[]= //setcookie()
Solution
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SQL Injection => addslashes() / intval()
Cross Site Scripting => htmlentities()
Full Path Disclosure => is_string()
Credits
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by DarkFig -- http://www.acid-root.new.fr/advisories/csforum081.txt
Changelog
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[06-06-11] -- Vendor contacted