There's a vulnerability in non-SQL version of YaBB forum (I've checked it with YaBB 1 Gold - SP 1.2 written in Perl -- it's not new, but is in use even nowadays).
You can input almost anything into .txt file from boards directory. The "subject" form field isn't checked for "\n" symbols, so creating of a thread with such subject:
"test of vulnerability"
will add to the current board .txt file these strings:
"<seconds_from_Epoch>|test of vulnerability|<authors_nick>|<email>|<date>|<replies>|<authors_accont>|<icon>|<thread_status>"
To fix the problem look at sub Post2 in Post.pl and add this:
$subject =~ s/\n/ /g;
after this line:
$subject = $FORM{'subject'};
tweakz20
May 4 2004, 12:30 AM
allinurl: "YaBB pl?" ^google search don't know how to narrow it down, sorry
doesn't look very usefull, but thanks
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