CVE-2023-49657

/// Technical description

A stored cross-site scripting (XSS) vulnerability exists in Apache Superset before 3.0.3. An authenticated attacker with create/update permissions on charts or dashboards could store a script or add a specific HTML snippet that would act as a stored XSS.

For 2.X versions, users should change their config to include:

TALISMAN_CONFIG = {

    "content_security_policy": {

        "base-uri": ["'self'"],

        "default-src": ["'self'"],

        "img-src": ["'self'", "blob:", "data:"],

        "worker-src": ["'self'", "blob:"],

        "connect-src": [

            "'self'",

            " https://api.mapbox.com" https://api.mapbox.com" ;,

            " https://events.mapbox.com" https://events.mapbox.com" ;,

        ],

        "object-src": "'none'",

        "style-src": [

            "'self'",

            "'unsafe-inline'",

        ],

        "script-src": ["'self'", "'strict-dynamic'"],

    },

    "content_security_policy_nonce_in": ["script-src"],

    "force_https": False,

    "session

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References