b2evolution XSS Vulnerabilities

Security Advisory

Severity: Medium
Title: b2evolution XSS Vulnerability
Date: 28.11.06
Author: tarkus (tarkus (at) tiifp (dot) org)
Web: https://tiifp.org/tarkus
Vendor: b2evolution (http://b2evolution.net/)
Affected Product(s): b2evolution 1.8.2 - 1.9 beta

Description:

http://<victim>/<b2epath>/inc/VIEW/errors/_404_not_found.page.php?bas \
eurl=[XSS]&app_name=[XSS]

http://<victim>/<b2epath>/inc/VIEW/errors/_410_stats_gone.page.php?ap \
p_name=[XSS]

http://<victim>/<b2epath>/inc/VIEW/errors/_referer_spam.page.php?ReqU \
RI=[XSS]&app_name=[XSS]

Workaround:

Put the following line at the beginning of the files.

if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page \
directly.' );

Timeline:

Reported to Vendor: 10.11.06
Vendor response: 10.11.06
Patch in CVS: 10.11.06