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.
http://secunia.com/advisories/55551
https://www.debian.org/security/2013/dsa-2794