Description
Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before 2.9.3, allows remote attackers to inject arbitrary web script or HTML via the HTTP X_FORWARDED_FOR header, which is stored by system/libraries/Environment.php but not properly handled by a comments action to main.php.
References
- http://dev.contao.org/issues/2751
- contao-xforwardedfor-xss(64679) vdb-entry
- 70440 vdb-entry
- 42899 third-party-advisory
- http://www.contao.org/news/items/contao-2_9_3.html
- 20110112 [MajorSecurity SA-081]Contao CMS 2.9.2 - Persistent Cross Site Scripting Issue mailing-list
- http://www.contao.org/changelog.html