CVE-2023-39144Public exploitNetwork attack vector

Credential disclosure via plaintext admin form values

Published Aug 3, 2023 · Updated Oct 17, 2024

Cleartext credential storage in Element55 KnowMore 21 and earlier allows remote attackers to read service account passwords. The Exchange, LDAP, SQL, and Shoretel administration pages place saved passwords in HTML password-input value attributes, so asterisks mask them visually while page source reveals the plaintext. Exposure requires access to an affected administration page and discloses credentials that can grant access to connected services.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential storage in Element55 KnowMore 21 and earlier allows remote attackers to read service account passwords. The Exchange, LDAP, SQL, and Shoretel administration pages place saved passwords in HTML password-input value attributes, so asterisks mask them visually while page source reveals the plaintext. Exposure requires access to an affected administration page and discloses credentials that can grant access to connected services.

The record

CVE
CVE-2023-39144
Published
Aug 3, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-312, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552Unsecured Credentials

Public exploit references

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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