CVE-2026-30845 Wekan Exposes Sensitive Data through Lack of Field Filtering During Board Publication
Attackers can retrieve sensitive webhook credentials from public or member-accessible boards, enabling unauthorized actions in external services.
- 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-2026-30845?
CVE-2026-30845 is a medium-severity vulnerability in Wekan, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the board composite publication in Wekan publishes all integration data for a board without any field filtering, exposing sensitive fields including webhook URLs and authentication tokens to any subscriber. Since board publications are accessible to all board members regardless of their role (including read-only and comment-only users), and even to unauthenticated DDP clients for public boards, any user who can access a board can retrieve its webhook credentials. This token leak allows attackers to make unauthenticated requests to the exposed webhooks, potentially triggering unauthorized actions in connected external services. This issue has been fixed in version 8.34.
Which versions are affected by CVE-2026-30845?
It affects 1 product.
Products include Wekan Project Wekan.
How do I fix CVE-2026-30845?
No fix has been published for CVE-2026-30845 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-30845 being exploited?
There is no known exploitation of CVE-2026-30845 in the wild and no public exploit code.
Other vulnerabilities in Wekan
- CVE-2026-30843 Wekan has Cross-Board IDOR in Custom Fields Update Endpoints
- CVE-2026-30844 Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading
- CVE-2026-30847 Wekan Credential Leak via notificationUsers Publication Exposes Password Hashes and Session Tokens
- CVE-2025-65780 Missing authorization in n/a
- CVE-2026-30846 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication