CVE-2026-4959

A vulnerability was found in OpenBMB XAgent 1.0.0. This impacts the function check_user of the file XAgentServer/application/websockets/share.py of the component ShareServer WebSocket Endpoint. Performing a manipulation of the argument interaction_id results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://gist.github.com/YLChen-007/531ec6b169f4b9ecbc8c2f0b2cd7c5ee	Exploit Third Party Advisory
https://vuldb.com/?ctiid.353836	Permissions Required VDB Entry
https://vuldb.com/?id.353836	Permissions Required VDB Entry
https://vuldb.com/?submit.777622	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openbmb:xagent:1.0.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-27 16:16

Updated : 2026-06-17 10:57

NVD link : CVE-2026-4959

Mitre link : CVE-2026-4959

CVE.ORG link : CVE-2026-4959

JSON object : View

Products Affected

openbmb

xagent

CWE

CWE-287

Improper Authentication

CWE-306

Missing Authentication for Critical Function

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