kan through 0.6.0 fails to properly validate board creation permissions in the GitHub project import endpoint, allowing guests to create boards despite lacking board:create permission. Attackers can bypass authorization checks by using the importProjects mutation to create boards while remaining blocked on direct creation paths.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Kan Kan
cpe:2.3:a:kan:kan:*:*:*:*:*:*:*:*
|
— |
<= 0.6.0
|
References 5
https://github.com/kanbn/kan
disclosure@vulncheck.com
https://github.com/kanbn/kan/blob/f08920d/packages/api/src/routers/import.ts#L2…
disclosure@vulncheck.com
https://github.com/kanbn/kan/blob/v0.6.0/packages/api/src/routers/import.ts#L62…
disclosure@vulncheck.com
https://github.com/kanbn/kan/issues/628
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/kan-through-0.6.0-authorization-bypass-via…
disclosure@vulncheck.com