CVE-2019-19003Network attack vector

Session cookie exposure via missing HttpOnly flag

Published Apr 2, 2020 · Updated Aug 5, 2024

Cookie misconfiguration in Hitachi Energy eSOMS 4.0 through 6.0.2 allows attackers to read session cookies through JavaScript. The application sets cookies without the HttpOnly attribute, leaving their contents accessible to scripts executing in the browser. Exploitation requires attacker-controlled JavaScript in an eSOMS browser context, and exposed session data can support browser-session takeover.

CVSS severity5.3
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cookie misconfiguration in Hitachi Energy eSOMS 4.0 through 6.0.2 allows attackers to read session cookies through JavaScript. The application sets cookies without the HttpOnly attribute, leaving their contents accessible to scripts executing in the browser. Exploitation requires attacker-controlled JavaScript in an eSOMS browser context, and exposed session data can support browser-session takeover.

The record

CVE
CVE-2019-19003
Published
Apr 2, 2020
Updated
Aug 5, 2024
Vendor
Hitachi Energy
Product
Electronic Shift Operations Management System (eSOMS)
Classifications
CWE-16, CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 2, 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=4.0 to 6.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hitachi Energy · Electronic Shift Operations Management System (eSOMS)version=4.0 to 6.0.2

Published CVSS scores

5.3Asea Brown Boveri Ltd. (ABB)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-16Configuration
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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