SPIP 4.0.0 is affected by a Cross Site Scripting (XSS) vulnerability in ecrire/public/interfaces.php, adding the function safehtml to the vulnerable fields. An editor is able to modify his personal information. If the editor has an article written and available, when a user goes to the public site and wants to read the author's information, the malicious code will be executed. The "Who are you" and "Website Name" fields are vulnerable.
SPIP versión 4.0.0 está afectado por una vulnerabilidad de tipo Cross Site Scripting (XSS) en el archivo ecrire/public/interfaces.php, que añade la función safehtml a los campos vulnerables. Un editor es capaz de modificar su información personal. Si el editor presenta un artículo escrito y disponible, cuando un usuario vaya al sitio público y quiera leer la información del autor, será ejecutado el código malicioso. Los campos "Who are you" y "Website Name" son vulnerables
It was discovered that SPIP incorrectly validated inputs. An authenticated attacker could possibly use this issue to execute arbitrary code. Charles Fol and Theo Gordyjan discovered that SPIP is vulnerable to cross site scripting. If a user were tricked into browsing a malicious SVG file, an attacker could possibly exploit this issue to execute arbitrary code. This issue was only fixed in Ubuntu 21.10.
