CVE-2022-39217Network attack vector

Code execution via unsanitized CSV formula fields

Published Sep 16, 2022 · Updated Apr 23, 2025

CSV formula injection in Natalie Somersall ghas-to-csv before 1 allows remote attackers to trigger code execution when exported data is opened. The code-scanning, enterprise, and secret-scanning exporters use Python's standard csv module, which does not neutralize values interpreted as formulas. Exploitation requires attacker-controlled alert or custom-field content and a recipient who opens the generated CSV in a formula-evaluating spreadsheet.

CVSS severity5.8
Medium
EPSS probability0.58%
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 Natalie Somersall ghas-to-csv before 1 allows remote attackers to trigger code execution when exported data is opened. The code-scanning, enterprise, and secret-scanning exporters use Python's standard csv module, which does not neutralize values interpreted as formulas. Exploitation requires attacker-controlled alert or custom-field content and a recipient who opens the generated CSV in a formula-evaluating spreadsheet.

The record

CVE
CVE-2022-39217
Published
Sep 16, 2022
Updated
Apr 23, 2025
Vendor
Natalie Somersall
Product
ghas-to-csv
Classifications
CWE-74, CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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?

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  1. Affected versionversion=< v1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Natalie Somersall · ghas-to-csvversion=< v1

Published CVSS scores

5.8GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-1236Improper Neutralization of Formula Elements in a CSV File
T1204.002Malicious File

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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