Vulnerability in Jenkins Script Security

CVE-2019-10400

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.62 and earlier related to the handling of subexpressions in increment and decrement expressions not involving actual assignment allowed attackers to execute arbitrary code in sandboxed scripts.

EPSS: 0.010 (60.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-10400?
CVE-2019-10400 is a medium-severity vulnerability in Jenkins Script Security. CVSS score: 4.2/10. Published 2019-09-12.
How severe is CVE-2019-10400?
Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2019-10400 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.