CVE-2021-35527

Credential disclosure via autocomplete-enabled password field

Published Jul 14, 2021 · Updated Sep 16, 2024

Credential exposure in Hitachi Energy eSOMS 6.3 and earlier allows attackers to obtain passwords saved by a user's browser. The web application leaves autocomplete enabled on its password field, causing the browser to retain credentials where another context can retrieve them. Exploitation requires system access or cross-site scripting in another compromised application; the disclosed consequence is credential theft.

CVSS severity7.5
High
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Hitachi Energy eSOMS 6.3 and earlier allows attackers to obtain passwords saved by a user's browser. The web application leaves autocomplete enabled on its password field, causing the browser to retain credentials where another context can retrieve them. Exploitation requires system access or cross-site scripting in another compromised application; the disclosed consequence is credential theft.

The record

CVE
CVE-2021-35527
Published
Jul 14, 2021
Updated
Sep 16, 2024
Vendor
Hitachi Energy
Product
Electronic Shift Operations Management System (eSOMS)
Classifications
CWE-200, CWE-522, T1555.003
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=unspecified <=6.3

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Hitachi Energy · Electronic Shift Operations Management System (eSOMS)version=unspecified <=6.3

Published CVSS scores

7.5Hitachi EnergyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-522Insufficiently Protected Credentials
T1555.003Credentials from Web Browsers

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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