CVE-2021-41128Network attack vector

Spreadsheet formula execution via unescaped CSV fields

Published Oct 6, 2021 · Updated Aug 4, 2024

CSV injection in JOSHMARTIN GmbH Hygeia exports before 1.30.4 allows remote authenticated users to execute spreadsheet formulas. The BAG MED and statistics export paths pass user-supplied field values to CSV.encode without formula escaping, preserving formula syntax in generated CSV cells. Execution requires another user to export the stored data and open the CSV file in a formula-capable editor such as Excel, where the formula runs in that user's desktop context.

CVSS severity9.1
Critical
EPSS probability1.30%
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 JOSHMARTIN GmbH Hygeia exports before 1.30.4 allows remote authenticated users to execute spreadsheet formulas. The BAG MED and statistics export paths pass user-supplied field values to CSV.encode without formula escaping, preserving formula syntax in generated CSV cells. Execution requires another user to export the stored data and open the CSV file in a formula-capable editor such as Excel, where the formula runs in that user's desktop context.

The record

CVE
CVE-2021-41128
Published
Oct 6, 2021
Updated
Aug 4, 2024
Vendor
JOSHMARTIN GmbH
Product
Hygeia
Classifications
CWE-74, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=> 1.11.0, < 1.30.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JOSHMARTIN GmbH · Hygeiaversion=> 1.11.0, < 1.30.4

Published CVSS scores

9.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
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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