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Instructure Canvas LMS didn't properly deny access to locked/unpublished files when the unprivileged user access the DocViewer based file preview URL (canvadoc_session_url).

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.87% chance of exploitation in the next 30 days, 56th percentile

Published

2023-01-26

Updated

2024-08-04

Proof-of-concept exploits (1)

• gaukas/instructure-canvas-file-oracle1★ · 2022-10-15

References

• CVE Record
• NVD entry

Related

• CVE-2021-36535
• CVE-2021-3654
• CVE-2021-36532
• CVE-2021-36543
• CVE-2021-36531
• CVE-2021-36546