Vulnerabilities

A User enumeration vulnerability in the /CredentialsServlet/ForgotPassword endpoint in Silverpeas 6.4.1 and 6.4.2 allows remote attackers to determine valid usernames via the Login parameter.

Silverpeas 6.4.2 contains a stored cross-site scripting (XSS) vulnerability in the event management module. An authenticated user can upload a malicious SVG file as an event attachment, which, when viewed by an administrator, executes embedded JavaScript in the admin's session. This allows attackers to escalate privileges by creating a new administrator account. The vulnerability arises from insufficient sanitization of SVG files and weak CSRF protections.

Stored Cross-Site Scripting (XSS) Vulnerability in the Categorization Option of My Subscriptions Functionality in Silverpeas Core 6.3.1 <= 6.4.1 allows a remote attacker to execute arbitrary JavaScript code. This is achieved by injecting a malicious payload into the Name field of a subscription. The attack can lead to session hijacking, data theft, or unauthorized actions when an admin user views the affected subscription.

SQL Injection vulnerability in Silverpeas 6.4.1 allows a remote attacker to obtain sensitive information via the ViewType parameter of the findbywhereclause function

An issue in the password change function of Silverpeas v6.4.2 and lower allows for the bypassing of password complexity requirements.

In Silverpeas Core <= 6.3.5, in Mes Agendas, a user can create new events and add them to their calendar. Additionally, users can invite others from the same domain, including administrators, to these events. A standard user can inject an XSS payload into the "Titre" and "Description" fields when creating an event and then add the administrator or any user to the event. When the invited user (victim) views their own profile, the payload will be executed on their side, even if they do not click on the event.

Silverpeas before 6.3.5 allows authentication bypass by omitting the Password field to AuthenticationServlet, often providing an unauthenticated user with superadmin access.

Silverpeas Core 6.3 is vulnerable to Cross Site Scripting (XSS) via ClipboardSessionController.

The "userModify" feature of Silverpeas Core 6.3.1 is vulnerable to Cross Site Request Forgery (CSRF) leading to privilege escalation. If an administrator goes to a malicious URL while being authenticated to the Silverpeas application, the CSRF with execute making the attacker an administrator user in the application.

Silverpeas 5.15 through 6.0.2 is affected by an authenticated Directory Traversal vulnerability that can be triggered during file uploads because core/webapi/upload/FileUploadData.java mishandles a StringUtil.java call. This vulnerability enables regular users to write arbitrary files on the underlying system with privileges of the user running the application. Especially, an attacker may leverage the vulnerability to write an executable JSP file in an exposed web directory to execute commands on the underlying system.