CVE-2022-45357Network attack vector

Command execution via unneutralized CSV formulas

Published Nov 7, 2023 · Updated Apr 28, 2026

CSV injection in Lenderd 1003 Mortgage Application 1.75 and earlier allows remote attackers to place formulas in exported CSV files. The export path fails to neutralize formula elements before placing data into CSV cells, but the advisory does not identify the affected field or routine. Exploitation requires a recipient to open the exported file in vulnerable spreadsheet software, where a formula can alter data or execute commands.

CVSS severity6.1
Medium
EPSS probability0.85%
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 Lenderd 1003 Mortgage Application 1.75 and earlier allows remote attackers to place formulas in exported CSV files. The export path fails to neutralize formula elements before placing data into CSV cells, but the advisory does not identify the affected field or routine. Exploitation requires a recipient to open the exported file in vulnerable spreadsheet software, where a formula can alter data or execute commands.

The record

CVE
CVE-2022-45357
Published
Nov 7, 2023
Updated
Apr 28, 2026
Vendor
8blocks
Product
1003 Mortgage Application
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=0 <=1.75
  2. Affected versionversion=n/a <=1.75 changes=[{"at":"1.80","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

8blocks · 1003 Mortgage Applicationversion=0 <=1.75; version=n/a <=1.75 changes=[{"at":"1.80","status":"unaffected"}]

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.1PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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