Bludit vulnerabilities

A stored cross-site scripting (XSS) vulnerability in Bludit 4.0.0-beta allows a low-privileged authenticated user (Author role) to inject arbitrary JavaScript by uploading a crafted SVG file as the site logo.

Bludit prior to version 3.22.0 has a vulnerability in the user management logic that allows deactivated accounts to maintain access via persistent authentication tokens. When an administrator disables a user account, the application fails to invalidate or clear the associated tokenAuth and tokenRemember fields in the JSON database. Consequently, any user with a pre-existing "Remember Me" cookie can bypass the account disablement and maintain a valid authenticated state.

Bludit prior to version 3.22.0 has a Broken Access Control flaw where active sessions remain valid even after the user account is deleted from the database. This allows revoked users to maintain unauthorized access.

Bludit 3.16.2 contains a stored XSS vulnerability in the post content functionality. The application performs client-side sanitation but lacks server-side enforcement. An authenticated user can inject arbitrary JavaScript into post content, which is stored and rendered to other users without proper output encoding.

Bludit 3.16.1 has a CSRF vulnerability in the /admin/uninstall-plugin/ and /admin/install-theme/ endpoints. Lack of CSRF tokens or request origin validation allows an attacker to trick an authenticated admin into performing unauthorized actions.

An issue was found in Bludit v3.13.0 where an unsafe implementation of the backup plugin allows attackers to upload arbitrary files to the server.