CVE-2021-36400 - Vulnerability Details - OpenCVE

In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Moodle	Moodle

Configuration 1 [-]

OR	cpe:2.3:a:moodle:moodle::::::::
	cpe:2.3:a:moodle:moodle::::::::
	cpe:2.3:a:moodle:moodle::::::::

No data.

References

Link	Providers
https://moodle.org/mod/forum/discuss.php?d=424806

History

Fri, 07 Mar 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: fedora

Published: 2023-03-06T00:00:00.000Z

Updated: 2025-03-07T18:03:53.554Z

Reserved: 2021-07-12T00:00:00.000Z

Link: CVE-2021-36400

Vulnrichment

Updated: 2024-08-04T00:54:51.487Z

NVD

Status : Modified

Published: 2023-03-06T22:15:09.547

Modified: 2025-03-07T18:15:34.827

Link: CVE-2021-36400

Redhat

No data.

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*", "matchCriteriaId": "6ED9E7B8-EAD3-4BE3-BC62-E2B9926EE426", "versionEndExcluding": "3.9.8", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*", "matchCriteriaId": "5F564F50-7DC5-4243-897A-D9334AC7B1BE", "versionEndExcluding": "3.10.5", "versionStartIncluding": "3.10.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*", "matchCriteriaId": "F54C5456-58D7-4042-96FA-BD88C9B88EB0", "versionEndExcluding": "3.11.1", "versionStartIncluding": "3.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions."}], "id": "CVE-2021-36400", "lastModified": "2025-03-07T18:15:34.827", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2023-03-06T22:15:09.547", "references": [{"source": "patrick@puiterwijk.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://moodle.org/mod/forum/discuss.php?d=424806"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://moodle.org/mod/forum/discuss.php?d=424806"}], "sourceIdentifier": "patrick@puiterwijk.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-276"}], "source": "patrick@puiterwijk.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-639"}], "source": "nvd@nist.gov", "type": "Primary"}]}