CVE-2019-12416Network attack vector

Cross-site scripting via unencoded request values

Published Mar 19, 2020 · Updated Aug 4, 2024

Cross-site scripting in Apache DeltaSpike 1.9.2 and earlier allows remote attackers to execute JavaScript via a crafted request URL. ClientSideWindowStrategy.sendWindowHandlerHtml inserts the request URL and window ID directly into JavaScript and HTML attribute contexts without encoding. Exploitation requires the nondefault ClientSideWindowStrategy and victim interaction, allowing script execution in the affected application's browser context.

CVSS severity6.1
Medium
EPSS probability2.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Apache DeltaSpike 1.9.2 and earlier allows remote attackers to execute JavaScript via a crafted request URL. ClientSideWindowStrategy.sendWindowHandlerHtml inserts the request URL and window ID directly into JavaScript and HTML attribute contexts without encoding. Exploitation requires the nondefault ClientSideWindowStrategy and victim interaction, allowing script execution in the affected application's browser context.

The record

CVE
CVE-2019-12416
Published
Mar 19, 2020
Updated
Aug 4, 2024
Vendor
Apache Software Foundation
Product
Apache DeltaSpike
Classifications
CWE-74, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 19, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Apache DeltaSpike up to including 1.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apache Software Foundation · Apache DeltaSpikeversion=Apache DeltaSpike up to including 1.9.2

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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