CVE-2026-111363
BISHENG through 3.0.0-beta4 IDOR via /api/v1/knowledge/file_bbox
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
BISHENG through 3.0.0-beta4 contains an insecure direct object reference vulnerability that allows authenticated low-privileged users to read other users' parsed documents by supplying arbitrary file_id values. Attackers can enumerate sequential file ids against GET /api/v1/knowledge/file_bbox to retrieve extracted page text from other users' and tenants' knowledge bases.
| CWE | CWE-639 |
| Vendor | dataelement |
| Product | bisheng |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
dataelement / bisheng
0 ≤ 3.0.0-beta4
References
hackmd.io: https://hackmd.io/@hieuPenguinnn/bisheng-knowledge-file-bbox-cross-user-idor github.com: https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/api/endpoints/knowledge.py#L663-L670 github.com: https://github.com/dataelement/bisheng/blob/v3.0.0-beta4/src/backend/bisheng/knowledge/domain/services/knowledge_service.py#L2523-L2533 github.com: https://github.com/dataelement/bisheng vulncheck.com: https://www.vulncheck.com/advisories/bisheng-through-3.0.0-beta4-idor-via-api-v1-knowledge-file-bbox
Credits
hieuPenguinnn