CVE-2023-47489

Code execution via unneutralized CSV formulas

Published Nov 9, 2023 · Updated Sep 29, 2025

CSV injection in Combodo iTop 3.1.0-2-11973 allows local users to execute commands when a malicious exported CSV file is opened. The export-v2.php and ajax.render.php paths place user-supplied spreadsheet formulas into CSV output without neutralization, enabling DDE formulas to launch CMD or PowerShell. Exploitation requires low-privileged access to supply the formula and a spreadsheet application to process the exported file; the command runs in the opener's context.

CVSS severity7.8
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSV injection in Combodo iTop 3.1.0-2-11973 allows local users to execute commands when a malicious exported CSV file is opened. The export-v2.php and ajax.render.php paths place user-supplied spreadsheet formulas into CSV output without neutralization, enabling DDE formulas to launch CMD or PowerShell. Exploitation requires low-privileged access to supply the formula and a spreadsheet application to process the exported file; the command runs in the opener's context.

The record

CVE
CVE-2023-47489
Published
Nov 9, 2023
Updated
Sep 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1204.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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