CVE-2019-19294Network attack vector

Stored XSS via persistent web input fields

Published Mar 10, 2020 · Updated Aug 5, 2024

Stored XSS in Siemens Control Center Server before 1.5.0 allows remote authenticated users to execute scripts in other users' browsers. Several web-interface input fields retain injected JavaScript and later render it as executable content when another user views the relevant page. An authenticated account is required, and successful exploitation alters browser-side behavior in another user's CCS session.

CVSS severity6.3
Medium
EPSS probability1.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Siemens Control Center Server before 1.5.0 allows remote authenticated users to execute scripts in other users' browsers. Several web-interface input fields retain injected JavaScript and later render it as executable content when another user views the relevant page. An authenticated account is required, and successful exploitation alters browser-side behavior in another user's CCS session.

The record

CVE
CVE-2019-19294
Published
Mar 10, 2020
Updated
Aug 5, 2024
Vendor
Siemens
Product
Control Center Server (CCS)
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=All versions < V1.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · Control Center Server (CCS)version=All versions < V1.5.0

Published CVSS scores

6.3Siemens AGCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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