CVE-2025-56449
HIGH EPSS 27.3%
Published Sep 29, 20259mo ago · Modified Jun 17, 20261w ago
8.2 CVSS 3.1
Published Sep 29, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
27.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-290
References 3
- blog.gregscharf.com https://blog.gregscharf.com/2025/07/11/upcoming-vulnerability-advisory/
- blog.gregscharf.com https://blog.gregscharf.com/2025/07/31/obsidian-scheduler-access-control-vulnerability/
- wiki.obsidianscheduler.com https://wiki.obsidianscheduler.com/docs/Release_Notes#Obsidian_6.3.1
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.