EUVD-2026-20570
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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3Description
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 16.1.0 to before 27.0.3 and 28.0.1, While the frontend of the media module filters files that the user should not have access to, the backend was not applying access checks and it would be possible for someone who should not have access to a file to access it if they know the filename. This vulnerability is fixed in 27.0.3 and 28.0.1.
Analysis
LORIS (Longitudinal Online Research and Imaging System) versions 16.1.0 through 27.0.2 and 28.0.0 allow authenticated users to bypass backend access controls in the media module and access files they should not have permission to view, provided they know the filename. The vulnerability stems from missing server-side authorization checks that should prevent unauthorized file access, enabling confidentiality and integrity compromise of sensitive neuroimaging research data. …
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