How severe is CVE-2019-10403?

CVE-2019-10403 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-2019-10403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10403?

CVE-2019-10403 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-10403?

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

When was CVE-2019-10403 published?

CVE-2019-10403 was published on 2019-09-25 and last updated on 2026-06-17.

CVE-2019-10403

CVE-2019-10403 is a medium-severity vulnerability in Jenkins 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)
CVSS v2: 3.5
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Jenkins
Published: 2019-09-25
Last modified: 2026-06-17

Description

Jenkins 2.196 and earlier, LTS 2.176.3 and earlier did not escape the SCM tag name on the tooltip for SCM tag actions, resulting in a stored XSS vulnerability exploitable by users able to control SCM tag names for these actions.

Frequently asked questions

What is CVE-2019-10403?: Jenkins 2.196 and earlier, LTS 2.176.3 and earlier did not escape the SCM tag name on the tooltip for SCM tag actions, resulting in a stored XSS vulnerability exploitable by users able to control SCM tag names for these actions.
How severe is CVE-2019-10403?: CVE-2019-10403 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-2019-10403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10403?: CVE-2019-10403 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-10403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-10403 published?: CVE-2019-10403 was published on 2019-09-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

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