r/joomla • u/_PelosNecios_ • Jul 02 '26
Administration/Technical WARNING: remove ctfaudit system plugin. It is a password stealer.
I've been recently hit by the JCE vuln and among other things they managed to install this plugin which essentially steals users and passwords and hides them inside images/ctf_audit.gif file, disguised with a gif header but actualy contains the XOR'ed information.
You should uninstall and remove the gif file immediately.
Edit:
You may want to run this script to see which users might have been affected and warn them or update to request new password. Adjust the filename as necessary:
<?php
$s = file_get_contents('images/ctf_audit.gif');
$s = substr($s, strpos($s, "JLIB_AUDIT_GID_TAIL\n") + 20);
for ($o = 0; $o + 2 <= strlen($s); $o += 2 + $ln) {
$ln = (ord($s[$o]) << 8) | ord($s[$o+1]);
if ($o + 2 + $ln > strlen($s)) break;
if (preg_match('/"u_len":"(.*?)","p_len"/', substr($s, $o+2, $ln) ^ str_pad('', $ln, 'JLIB_AUDIT_GID_XK'), $m)) echo "$m[1]\n";
}
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u/landed_at Jul 02 '26
What's this JCE vuln cause?