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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Openbmb
  • Xagent

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References
Link Providers
https://gist.github.com/YLChen-007/531ec6b169f4b9ecbc8c2f0b2cd7c5ee cve-icon cve-icon
https://vuldb.com/?ctiid.353836 cve-icon cve-icon
https://vuldb.com/?id.353836 cve-icon cve-icon
https://vuldb.com/?submit.777622 cve-icon cve-icon
History

Tue, 31 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 27 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenBMB XAgent ShareServer WebSocket Endpoint share.py check_user missing authentication
First Time appeared Openbmb
Openbmb xagent
Weaknesses CWE-287
CWE-306
CPEs cpe:2.3:a:openbmb:xagent:*:*:*:*:*:*:*:*
Vendors & Products Openbmb
Openbmb xagent
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-03-27T15:31:29.753Z

Updated: 2026-03-31T15:09:19.380Z

Reserved: 2026-03-27T08:07:58.352Z

Link: CVE-2026-4959

cve-icon Vulnrichment

Updated: 2026-03-31T15:09:16.022Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-27T16:16:25.163

Modified: 2026-03-30T13:26:29.793

Link: CVE-2026-4959

cve-icon Redhat

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