CVE-2023-46401Public exploitNetwork attack vector

Spreadsheet command execution via unvalidated invoice input

Published Jan 23, 2025 · Updated Jan 28, 2025

CSV formula injection in KWHotel Free 0.47 allows attackers to embed spreadsheet formulas through the invoice customer-search field. The invoice-adding workflow accepts an equals-prefixed payload without validation, leaving executable spreadsheet content in exported data. Exploitation requires a user to open the crafted CSV in a formula-capable spreadsheet; the published payload invokes PowerShell on Windows.

CVSS severity9.8
Critical
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSV formula injection in KWHotel Free 0.47 allows attackers to embed spreadsheet formulas through the invoice customer-search field. The invoice-adding workflow accepts an equals-prefixed payload without validation, leaving executable spreadsheet content in exported data. Exploitation requires a user to open the crafted CSV in a formula-capable spreadsheet; the published payload invokes PowerShell on Windows.

The record

CVE
CVE-2023-46401
Published
Jan 23, 2025
Updated
Jan 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 2025Record 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

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1236Improper Neutralization of Formula Elements in a CSV File
T1204.002Malicious File

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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