How severe is CVE-2020-2137?

CVE-2020-2137 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-2137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2137?

CVE-2020-2137 affects Jenkins Timestamper. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2137?

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

When was CVE-2020-2137 published?

CVE-2020-2137 was published on 2020-03-09 and last updated on 2026-06-17.

CVE-2020-2137

CVE-2020-2137 is a medium-severity vulnerability in Jenkins Timestamper with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Jenkins Timestamper
Published: 2020-03-09
Last modified: 2026-06-17

Description

Jenkins Timestamper Plugin 1.11.1 and earlier does not sanitize HTML formatting of its output, resulting in a stored XSS vulnerability exploitable by attackers with Overall/Administer permission.

Frequently asked questions

What is CVE-2020-2137?: Jenkins Timestamper Plugin 1.11.1 and earlier does not sanitize HTML formatting of its output, resulting in a stored XSS vulnerability exploitable by attackers with Overall/Administer permission.
How severe is CVE-2020-2137?: CVE-2020-2137 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-2137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2137?: CVE-2020-2137 affects Jenkins Timestamper. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-2137 published?: CVE-2020-2137 was published on 2020-03-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:timestamper:*:*:*:*:*:jenkins:*:*

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