CVE-2023-4543Public exploitNetwork attack vector

Database disclosure via unsanitized contact export query

Published Aug 25, 2023 · Updated Aug 2, 2024

SQL injection in the contact export action in IBOS 4.5.5 allows remote authenticated users to read database data through contactids. The actionExport method forwards the contactids request value to a model fetchAll operation that executes the resulting SQL without neutralizing the input. Access to recruitment contact export is required, and demonstrated error-based injection discloses the database name; broader database effects are not publicly demonstrated.

CVSS severity9.8
Critical
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in the contact export action in IBOS 4.5.5 allows remote authenticated users to read database data through contactids. The actionExport method forwards the contactids request value to a model fetchAll operation that executes the resulting SQL without neutralizing the input. Access to recruitment contact export is required, and demonstrated error-based injection discloses the database name; broader database effects are not publicly demonstrated.

The record

CVE
CVE-2023-4543
Published
Aug 25, 2023
Updated
Aug 2, 2024
Vendor
Shenzhen Booz Association for Network Technology Co., Ltd.
Product
IBOS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2023CVE 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=4.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Booz Association for Network Technology Co., Ltd. · IBOSversion=4.5.5

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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