A vulnerability has been identified in 123 Flash Chat Server, which may be exploited by remote attackers to create/overwrite arbitrary files and execute arbitrary commands. This flaw is due to an input validation error in the registration system that does not properly validate the "username" field, which may be exploited by remote attackers to create and execute malicious scripts with privileges of the server.
Credits
Vulnerability reported by Jesus Olmos Gonzalez
ChangeLog
2006-01-16 : Initial release
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