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CVE-2026-115933

CVE-2026-115933 · Forged signed tokens let any registered user take over other users and organizations

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Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can read it back. A user could therefore obtain a validly signed token containing any claims they choose, which the application accepts as a session, as an organization invitation with a chosen role, as a password reset or as an enterprise provisioning token. A second, narrower route that creates team invitations signs extra fields from the request body in the same way.

CVSS 9.9 · Critique · EPSS 0,2% · Correctif disponible

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Produits et versions concernés

  • postiz-app

    Versions du logiciel
    • ≥ 2.15.0, < 2.25.3: Concernée (semver)

    Mettez à jour vers 2.25.3

Sources originales

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