SPIP 4.0.0 is affected by a Cross Site Request Forgery (CSRF) vulnerability in ecrire/public/aiguiller.php, ecrire/public/balises.php, ecrire/balise/formulaire_.php. To exploit the vulnerability, a visitor must visit a malicious website which redirects to the SPIP website. It is also possible to combine XSS vulnerabilities in SPIP 4.0.0 to exploit it. The vulnerability allows an authenticated attacker to execute malicious code without the knowledge of the user on the website (CSRF).
SPIP versión 4.0.0 está afectado por una vulnerabilidad de tipo Cross Site Request Forgery (CSRF) en los archivos ecrire/public/aiguiller.php, ecrire/public/balises.php, ecrire/balise/formulaire_.php. Para explotar la vulnerabilidad, un visitante debe visitar un sitio web malicioso que redirija al sitio web de SPIP. También es posible combinar las vulnerabilidades de tipo XSS de SPIP versión 4.0.0 para explotarla. La vulnerabilidad permite a un atacante autenticado ejecutar código malicioso sin el conocimiento del usuario en el sitio web (CSRF)
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.
