How severe is CVE-2023-25765?

CVE-2023-25765 has a CVSS 3.x base score of 9.9, rated critical 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-2023-25765 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25765?

CVE-2023-25765 affects Jenkins Email Extension. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25765?

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

When was CVE-2023-25765 published?

CVE-2023-25765 was published on 2023-02-15 and last updated on 2026-06-17.

CVE-2023-25765

CVE-2023-25765 is a critical-severity vulnerability in Jenkins Email Extension with a CVSS 3.x base score of 9.9. 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-693.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-693
Affected product: Jenkins Email Extension
Published: 2023-02-15
Last modified: 2026-06-17

Description

In Jenkins Email Extension Plugin 2.93 and earlier, templates defined inside a folder were not subject to Script Security protection, allowing attackers able to define email templates in folders to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Frequently asked questions

What is CVE-2023-25765?: In Jenkins Email Extension Plugin 2.93 and earlier, templates defined inside a folder were not subject to Script Security protection, allowing attackers able to define email templates in folders to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
How severe is CVE-2023-25765?: CVE-2023-25765 has a CVSS 3.x base score of 9.9, rated critical 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-2023-25765 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25765?: CVE-2023-25765 affects Jenkins Email Extension. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25765?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-25765 published?: CVE-2023-25765 was published on 2023-02-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:email_extension:*:*:*:*:*:jenkins:*:*

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