CVE-2023-40918Public exploitNetwork attack vector

Unauthenticated administrator account creation via unchecked role assignment

Published Sep 5, 2023 · Updated Sep 30, 2024

Privilege escalation in KnowStreaming 3.3.0 allows remote attackers to create and access an administrator account without authentication. The user-detail interface reveals the administrator role identifier, and the user-creation interface accepts that identifier without a cookie or token. Network access to the management interface is sufficient; credentials for the new account authenticate with the administrator role and grant administrative control.

CVSS severity8.8
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in KnowStreaming 3.3.0 allows remote attackers to create and access an administrator account without authentication. The user-detail interface reveals the administrator role identifier, and the user-creation interface accepts that identifier without a cookie or token. Network access to the management interface is sufficient; credentials for the new account authenticate with the administrator role and grant administrative control.

The record

CVE
CVE-2023-40918
Published
Sep 5, 2023
Updated
Sep 30, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1136Create Account

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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