How severe is CVE-2018-8718?

CVE-2018-8718 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-8718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8718?

CVE-2018-8718 affects Jenkins Mailer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8718?

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-2018-8718 published?

CVE-2018-8718 was published on 2018-03-27 and last updated on 2026-06-17.

CVE-2018-8718

CVE-2018-8718 is a high-severity vulnerability in Jenkins Mailer with a CVSS 3.x base score of 8.0. 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 8.0)
CVSS v2: 6.0
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Jenkins Mailer
Published: 2018-03-27
Last modified: 2026-06-17

Description

Cross-site request forgery (CSRF) vulnerability in the Mailer Plugin 1.20 for Jenkins 2.111 allows remote authenticated users to send unauthorized mail as an arbitrary user via a /descriptorByName/hudson.tasks.Mailer/sendTestMail request.

Frequently asked questions

What is CVE-2018-8718?: Cross-site request forgery (CSRF) vulnerability in the Mailer Plugin 1.20 for Jenkins 2.111 allows remote authenticated users to send unauthorized mail as an arbitrary user via a /descriptorByName/hudson.tasks.Mailer/sendTestMail request.
How severe is CVE-2018-8718?: CVE-2018-8718 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-8718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8718?: CVE-2018-8718 affects Jenkins Mailer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8718?: 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-2018-8718 published?: CVE-2018-8718 was published on 2018-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:mailer:*:*:*:*:*:jenkins:*:*

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