CVE-2021-36539

Instructure Canvas LMS didn't properly deny access to locked/unpublished files when the unprivileged user access the DocViewer based file preview URL (canvadoc_session_url).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 46%
VendorProductVersion
instructurecanvas_learning_management_service
𝑥
< 2022-10-15
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/gaukas/instructure-canvas-file-oracle
https://github.com/instructure/canvas-lms/issues/1905
https://github.com/gaukas/instructure-canvas-file-oracle
https://github.com/instructure/canvas-lms/issues/1905