How severe is CVE-2023-40341?

CVE-2023-40341 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40341 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40341?

CVE-2023-40341 affects Jenkins Blue Ocean. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40341?

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-2023-40341 published?

CVE-2023-40341 was published on 2023-08-16 and last updated on 2026-06-17.

CVE-2023-40341

CVE-2023-40341 is a high-severity vulnerability in Jenkins Blue Ocean 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Jenkins Blue Ocean
Published: 2023-08-16
Last modified: 2026-06-17

Description

A cross-site request forgery (CSRF) vulnerability in Jenkins Blue Ocean Plugin 1.27.5 and earlier allows attackers to connect to an attacker-specified URL, capturing GitHub credentials associated with an attacker-specified job.

Frequently asked questions

What is CVE-2023-40341?: A cross-site request forgery (CSRF) vulnerability in Jenkins Blue Ocean Plugin 1.27.5 and earlier allows attackers to connect to an attacker-specified URL, capturing GitHub credentials associated with an attacker-specified job.
How severe is CVE-2023-40341?: CVE-2023-40341 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40341 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40341?: CVE-2023-40341 affects Jenkins Blue Ocean. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40341?: 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-2023-40341 published?: CVE-2023-40341 was published on 2023-08-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:blue_ocean:*:*:*:*:*:jenkins:*:*

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