CVE-2026-4959

MEDIUM EPSS 34.5%
Published Mar 27, 20263mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 4.0
Medium
Find Similar
Published Mar 27, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
34.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 1

VendorProductVersionRange
openbmbxagent1.0.0any

References 4

  • gist.github.com https://gist.github.com/YLChen-007/531ec6b169f4b9ecbc8c2f0b2cd7c5ee
    ExploitThird Party Advisory
  • vuldb.com https://vuldb.com/?ctiid.353836
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.353836
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?submit.777622
    Issue TrackingThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.