What is CVE-2019-12416?

CVE-2019-12416 is a medium-severity vulnerability in Apache Deltaspike, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.1/10. Published 2020-03-19.

How severe is CVE-2019-12416?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Apache Deltaspike

CVE-2019-12416

we got reports for 2 injection attacks against the DeltaSpike windowhandler.js. This is only active if a developer selected the ClientSideWindowStrategy which is not the default.

Published 2020-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.027 (85.9th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Apache Deltaspike
Apache Deltaspike — versions Apache DeltaSpike up to including 1.9.2

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

lists.apache.org/thread.html/r8f327712b2b07f867fde1e77cbafcf8cc6a3facaa693ffdd2… (Exploit, Mailing List, Vendor Advisory)
lists.apache.org/thread.html/r848d7d4c0bf637da55f01103eb8ba0fce344c295fda53264c… (mailing-list)

Frequently asked questions

What is CVE-2019-12416?: CVE-2019-12416 is a medium-severity vulnerability in Apache Deltaspike, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.1/10. Published 2020-03-19.
How severe is CVE-2019-12416?: Medium severity. CVSS v3 base score is 6.1 out of 10.