PHP remote file inclusion vulnerability in inc/claro_init_local.inc.php in Claroline 1.7.7 and earlier, as used in Dokeos and possibly other products, allows remote attackers to execute arbitrary PHP code via a URL in the extAuthSource[newUser] parameter.
secunia.com/advisories/21931
secunia.com/advisories/21948
www.claroline.net/wiki/index.php/Changelog_1.7.x#Modification_between_claroline_1.7.7_and_1.7.8
www.gulftech.org/?node=research&article_id=00112-09142006
www.gulftech.org/?node=research&article_id=00112-09142006&
www.securityfocus.com/bid/20056
www.vupen.com/english/advisories/2006/3638
www.vupen.com/english/advisories/2006/3639
exchange.xforce.ibmcloud.com/vulnerabilities/28943