CVE-2021-43560
Published: 22 November 2021
Summary
CVE-2021-43560 is a medium-severity Incorrect Authorization (CWE-863) vulnerability in Moodle Moodle. Its CVSS base score is 5.3 (Medium).
Operationally, ranked at the 36.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-3872
Vulnerability details
A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. Insufficient capability checks made it possible to fetch other users' calendar action events.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Ensures authorization decisions for external system use are correctly implemented and enforced.
It assists users in evaluating and applying correct authorization decisions when sharing information with external partners.
Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.
Periodic review and documentation of connection needs reduces incorrect authorization.
Enforces separation so resources are not placed in a public sphere without explicit protection.
The control ensures resources are not exposed outside their intended security domain by filtering transfers at the domain boundary.
Internal resources are kept in separate network spheres from externally accessible components.
Periodic review and update of procedures reduces incorrect authorization implementations over time.