Cross-site scripting (XSS) vulnerability in the author page (prive/formulaires/editer_auteur.php) in SPIP before 2.1.24 and 3.0.x before 3.0.12 allows remote attackers to inject arbitrary web script or HTML via the url_site parameter.
https://www.debian.org/security/2013/dsa-2794
http://www.spip.net/fr_article5648.html
http://www.spip.net/fr_article5646.html
http://www.securitytracker.com/id/1029317
http://www.openwall.com/lists/oss-security/2013/11/10/4
http://secunia.com/advisories/55551
http://core.spip.org/projects/spip/repository/revisions/20880
http://core.spip.org/projects/spip/repository/revisions/20879