cc-connect through 1.5.0 fails to enforce per-user allowlist filtering in the onCardAction handler for Feishu interactive card callbacks. Attackers can dispatch agent commands by triggering card actions in admitted chats, bypassing the per-user access controls that protect the text message handler.
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
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/chenhg5/cc-connect
disclosure@vulncheck.com
https://github.com/chenhg5/cc-connect/blob/v1.5.0/platform/feishu/feishu.go#L66…
disclosure@vulncheck.com
https://github.com/chenhg5/cc-connect/issues/1852
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/cc-connect-through-1.5.0-user-allowlist-by…
disclosure@vulncheck.com