CVE-2026-126807
WuzAPI through 1.1.0 Cross-Tenant Information Disclosure via /chat/history
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
WuzAPI through 1.1.0 contains a cross-tenant information disclosure vulnerability in the GetHistory handler that allows authenticated users to view other tenants' chat metadata. Attackers with message history enabled can request GET /chat/history with chat_jid=index to list every user's internal ID, stored chat JIDs, and last-message times.
| CWE | CWE-639 |
| Vendor | asternic |
| Product | wuzapi |
| Published | Nov 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
asternic / wuzapi
0 ≤ 1.1.0
References
github.com: https://github.com/asternic/wuzapi/issues/407 github.com: https://github.com/asternic/wuzapi/commit/f5332fa21b7c8a742f9ee565328ea776ad0c8040 github.com: https://github.com/asternic/wuzapi/blob/v1.1.0/handlers.go#L7269-L7296 github.com: https://github.com/asternic/wuzapi/blob/v1.1.0/routes.go#L139 hackmd.io: https://hackmd.io/@hieund/wuzapi-chat-history-index-cross-tenant-idor vulncheck.com: https://www.vulncheck.com/advisories/wuzapi-through-1.1.0-cross-tenant-information-disclosure-via-chat-history
Credits
hieuPenguinnn