CVE-2026-66724 Permission Bypass Via Undocumented HTTP Methods In MWDB Core
Authenticated users can bypass capability checks to upload configs and blobs via undocumented HTTP methods in MWDB Core.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66724?
CVE-2026-66724 is a medium-severity missing authorization vulnerability in CERT.PL MWDB Core, published on 29 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user without the adding_configs or adding_blobs capabilities to upload config and text blob objects to the system. The impact is limited to adding new config and blob objects. This issue has been fixed in version 2.19.0
Weakness: CWE-862
Which versions are affected by CVE-2026-66724?
How do I fix CVE-2026-66724?
No fix has been published for CVE-2026-66724 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-66724 being exploited?
There is no known exploitation of CVE-2026-66724 in the wild and no public exploit code.
Sources
Also known as GHSA-8fv8-wffg-4323.