How severe is CVE-2023-40918?

CVE-2023-40918 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40918 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40918?

CVE-2023-40918 affects Knowstreaming Project Knowstreaming. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40918?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-40918 published?

CVE-2023-40918 was published on 2023-09-05 and last updated on 2026-06-17.

CVE-2023-40918

CVE-2023-40918 is a high-severity vulnerability in Knowstreaming Project Knowstreaming with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Knowstreaming Project Knowstreaming
Published: 2023-09-05
Last modified: 2026-06-17

Description

KnowStreaming 3.3.0 is vulnerable to Escalation of Privileges. Unauthorized users can create a new user with an admin role.

Frequently asked questions

What is CVE-2023-40918?: KnowStreaming 3.3.0 is vulnerable to Escalation of Privileges. Unauthorized users can create a new user with an admin role.
How severe is CVE-2023-40918?: CVE-2023-40918 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40918 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40918?: CVE-2023-40918 affects Knowstreaming Project Knowstreaming. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40918?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-40918 published?: CVE-2023-40918 was published on 2023-09-05 and last updated on 2026-06-17.

References

https://github.com/didi/KnowStreaming/issues/1128

Affected products (1)

cpe:2.3:a:knowstreaming_project:knowstreaming:3.3.0:*:*:*:*:*:*:*

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