Some vulnerabilities have been reported in TikiWiki CMS/Groupware, one of which has an unspecified impact and others that can be exploited by malicious users to bypass certain security restrictions and by malicious people to conduct SQL injection attacks.

1) Input passed via the "date" parameter to tiki-searchresults.php and tiki-searchindex.php is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

2) An error in the user_logout() method can be exploited to perform certain restricted actions.

3) An unspecified error exists related to the Standard Remember method for persistent login. No further information is currently available.

The vulnerabilities are reported in versions prior to 4.2.

Solution
Update to version 4.2.

Provided and/or discovered by
1) Mateusz Drygas, PSNC Security Team
2-3) Reported by the vendor.

Changelog
Further details available to Secunia VIM customers

Original Advisory
TikiWiki:
http://info.tikiwiki.org/article86-Tiki-Announces-3-5-and-4-2-Releases
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=25435
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=25424
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=25046
http://tikiwiki.svn.sourceforge.net/viewvc/tikiwiki?view=rev&revision=24734

Mateusz Drygas:
http://security.psnc.pl/advisories/tikiwiki-4.1.txt

Deep Links
Links available to Secunia VIM customers