CVE-2025-56449 Auth bypass in n/a
Attackers can bypass MFA enforcement and create privileged users via the REST API using Basic Authentication, even when accounts are locked out in the web interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-56449?
CVE-2025-56449 is a high-severity authentication bypass vulnerability in n/a, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-290
Which versions are affected by CVE-2025-56449?
How do I fix CVE-2025-56449?
No fix has been published for CVE-2025-56449 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-56449 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-56449 exists.
Sources
Also known as GHSA-94hh-4gmr-5mv9.