A security vulnerability was identified in Obsidian Scheduler's REST API 5.0.0 thru 6.3.0. If an account is locked out due to not enrolling in MFA (e.g. after the 7-day enforcement window), the REST API still allows the use of Basic Authentication to authenticate and perform administrative actions. In particular, the default admin account was found to be locked out via the web interface but still usable through the REST API. This allowed creation of a new privileged user, bypassing MFA protections. This undermines the intended security posture of MFA enforcement.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-31578 A security vulnerability was identified in Obsidian Scheduler's REST API 5.0.0 thru 6.3.0. If an account is locked out due to not enrolling in MFA (e.g. after the 7-day enforcement window), the REST API still allows the use of Basic Authentication to authenticate and perform administrative actions. In particular, the default admin account was found to be locked out via the web interface but still usable through the REST API. This allowed creation of a new privileged user, bypassing MFA protections. This undermines the intended security posture of MFA enforcement.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 28 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-290
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 30 Sep 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Obsidian Scheduler
Obsidian Scheduler rest Api
Vendors & Products Obsidian Scheduler
Obsidian Scheduler rest Api

Mon, 29 Sep 2025 14:30:00 +0000

Type Values Removed Values Added
Description A security vulnerability was identified in Obsidian Scheduler's REST API 5.0.0 thru 6.3.0. If an account is locked out due to not enrolling in MFA (e.g. after the 7-day enforcement window), the REST API still allows the use of Basic Authentication to authenticate and perform administrative actions. In particular, the default admin account was found to be locked out via the web interface but still usable through the REST API. This allowed creation of a new privileged user, bypassing MFA protections. This undermines the intended security posture of MFA enforcement.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-10-28T20:24:22.903Z

Reserved: 2025-08-17T00:00:00.000Z

Link: CVE-2025-56449

cve-icon Vulnrichment

Updated: 2025-10-28T20:24:16.690Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-29T15:16:08.653

Modified: 2025-10-28T21:15:38.930

Link: CVE-2025-56449

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-09-30T08:48:27Z