CVE-2021-36539

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Instructure Canvas LMS didn't properly deny access to locked/unpublished files when the unprivileged user access the DocViewer based file preview URL (canvadoc_session_url).

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published
Jan 26, 2023
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-36546.1A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desiCVE-2021-365424.3Cross-Site Request Forgery (CSRF) vulnerability in the /op/op.LockDocument.php in SeedDMS v5.1.x<5.1.23 and v6.0.x <6.0.16 allows a remote aCVE-2021-365434.3Cross-Site Request Forgery (CSRF) vulnerability in the /op/op.UnlockDocument.php in SeedDMS v5.1.x <5.1.23 and v6.0.x <6.0.16 allows a remotCVE-2021-365447.5Incorrect Access Control issue discovered in tpcms 3.2 allows remote attackers to view sensitive information via path in application URL.CVE-2021-365455.4Cross Site Scripting (XSS) vulnerability in tpcms 3.2 allows remote attackers to run arbitrary code via the cfg_copyright or cfg_tel field iCVE-2021-365467.5Incorrect Access Control issue discovered in KiteCMS 1.1 allows remote attackers to view sensitive information via path in application URL.CVE-2021-365479.8A remote code execution (RCE) vulnerability in the component /codebase/dir.php?type=filenew of Mara v7.5 allows attackers to execute arbitraCVE-2021-365489.8A remote code execution (RCE) vulnerability in the component /admin/index.php?id=themes&action=edit_template&filename=blog of Monstra v3.0.4CVE-2021-36553.3A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow theCVE-2021-365505.4TikiWiki v21.4 was discovered to contain a cross-site scripting (XSS) vulnerability in the component tiki-browse_categories.php. This vulnerCVE-2021-365515.4TikiWiki v21.4 was discovered to contain a cross-site scripting (XSS) vulnerability in the component tiki-calendar.php. This vulnerability aCVE-2021-36568.8A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine c
CVE-2021-36539: Medium severity, CVSS 6.5 | Vulnix