Missing Authentication for Critical Function in Wekan - #VU145030
Published: August 25, 2026
Vulnerability identifier: #VU145030
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to modify database contents and cause a denial of service.
The vulnerability exists due to missing authentication in the `importBoard` Meteor DDP method in `models/import.js` when handling crafted DDP requests over WebSocket. A remote attacker can send a specially crafted request to modify database contents and cause a denial of service.
On default installations, the import feature is enabled, and the method can be reached through the `/sockjs/` endpoint without credentials. The issue affects shared and multi-tenant deployments on the same instance.
Affected software
Wekan
Remediation
Install security update from vendor's website.
Wekan - update to 11.10