How severe is CVE-2023-25764?

CVE-2023-25764 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-25764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25764?

CVE-2023-25764 affects Jenkins Email Extension. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25764?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-25764 published?

CVE-2023-25764 was published on 2023-02-15 and last updated on 2026-06-17.

CVE-2023-25764

CVE-2023-25764 is a medium-severity vulnerability in Jenkins Email Extension with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Jenkins Email Extension
Published: 2023-02-15
Last modified: 2026-06-17

Description

Jenkins Email Extension Plugin 2.93 and earlier does not escape, sanitize, or sandbox rendered email template output or log output generated during template rendering, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create or change custom email templates.

Frequently asked questions

What is CVE-2023-25764?: Jenkins Email Extension Plugin 2.93 and earlier does not escape, sanitize, or sandbox rendered email template output or log output generated during template rendering, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create or change custom email templates.
How severe is CVE-2023-25764?: CVE-2023-25764 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-25764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25764?: CVE-2023-25764 affects Jenkins Email Extension. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25764?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-25764 published?: CVE-2023-25764 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:*:*

More vulnerabilities in Jenkins Email Extension

CVE-2023-25765 — Critical (CVSS 9.9): In Jenkins Email Extension Plugin 2.93 and earlier, templates defined inside a folder were not subject to Script…
CVE-2019-1003032 — Critical (CVSS 9.9): A sandbox bypass vulnerability exists in Jenkins Email Extension Plugin 2.64 and earlier in pom.xml,…
CVE-2026-48920 — High (CVSS 8.8): Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by…
CVE-2020-2232 — High (CVSS 7.5): Jenkins Email Extension Plugin 2.72 and 2.73 transmits and displays the SMTP password in plain text as part of the…
CVE-2018-1000176 — Medium (CVSS 6.5): An exposure of sensitive information vulnerability exists in Jenkins Email Extension Plugin 2.61 and older in…
CVE-2023-25763 — Medium (CVSS 5.4): Jenkins Email Extension Plugin 2.93 and earlier does not escape various fields included in bundled email templates,…

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