CVE-2023-4539Network attack vector

Database disclosure via shared hard-coded account password

Published Feb 15, 2024 · Updated Aug 2, 2024

Hard-coded credentials in Comarch ERP XL 2020.2.2 through 2023.2 allow remote attackers to read sensitive database data. The installer creates a special database account with an invariant password reused across affected installations. Network access to the database service and knowledge of the embedded password are sufficient to authenticate as that account and read data available to it.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in Comarch ERP XL 2020.2.2 through 2023.2 allow remote attackers to read sensitive database data. The installer creates a special database account with an invariant password reused across affected installations. Network access to the database service and knowledge of the embedded password are sufficient to authenticate as that account and read data available to it.

The record

CVE
CVE-2023-4539
Published
Feb 15, 2024
Updated
Aug 2, 2024
Vendor
Comarch
Product
Comarch ERP XL
Classifications
CWE-798, CWE-259, CAPEC-37, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=2020.2.2 <=2023.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Comarch · Comarch ERP XLversion=2020.2.2 <=2023.2

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CERT.PLCVSS: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.

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-798Use of Hard-coded Credentials
CWE-259Use of Hard-coded Password
CAPEC-37Retrieve Embedded Sensitive Data
T1078Valid Accounts

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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