Shuffle through 2.2.1 contains a cross-tenant privilege escalation vulnerability in the HandleApiGeneration endpoint that allows administrators to reset and read API keys of non-administrator users in other organizations. Attackers with admin privileges in one organization can supply arbitrary user IDs to generate valid API keys for users in different organizations, enabling account takeover across tenant boundaries.
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
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/Shuffle/Shuffle
disclosure@vulncheck.com
https://github.com/Shuffle/shuffle-shared/blob/v1.2.50/shared.go#L9888-L9912
disclosure@vulncheck.com
https://github.com/Shuffle/shuffle-shared/commit/c1b582e91b429bc7d5ad02e6c22f98…
disclosure@vulncheck.com
https://github.com/geo-chen/oss/blob/main/shuffle.md
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/shuffle-through-2.2.1-api-key-reset-cross-…
disclosure@vulncheck.com