Wekan: `cloneBoard` Meteor method has no authorization check — any user can clone (read) any private board by ID
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Wekan is open source kanban built with Meteor. Prior to 9.35, the Wekan cloneBoard Meteor method in models/import.js uses caller-supplied sourceBoardId to build a board export through models/exporter.js without invoking canExport() or checking source-board membership. Any authenticated user who knows a private board ID can clone the board into their own account and read its cards, comments, attachments, member information, and activities. This issue is fixed in version 9.35.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA wekan (wekan) Fixed in 9.35
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53447
References
More wekan vulnerabilities
- TI-2026-40177 Improper authentication in wekan CVSS 3.1CRITICAL 9.8
- TI-2026-37989 Wekan: OIDC Account Takeover via Unconditional Email-Based Account Merge in onCreateUser hook CVSS 4.0CRITICAL 9.2
- TI-2026-48308 Improper privilege management in wekan CVSS 3.1HIGH 8.8
- TI-2026-48305 Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446) CVSS 3.1HIGH 8.5
- TI-2026-39911 Improper access control in wekan CVSS 3.1HIGH 8.5
- TI-2026-01855 WeKan Activity Publication activities.js LinkedBoardActivitiesBleed information disclosure CVSS 4.0MEDIUM 6.9
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences