CVE-2022-45078Network attack vector

Spreadsheet formula execution via unescaped CSV exports

Published Nov 7, 2023 · Updated Apr 28, 2026

CSV injection in Solwin Infotech User Blocker 1.5.5 and earlier allows attackers to embed executable formulas in exported data. The blocked-user CSV export writes stored field values without neutralizing leading spreadsheet formula characters. Administrator access is required to plant the value, and exploitation requires a privileged user to export and open the file in spreadsheet software.

CVSS severityUnavailable
Unscored
EPSS probability0.69%
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 Solwin Infotech User Blocker 1.5.5 and earlier allows attackers to embed executable formulas in exported data. The blocked-user CSV export writes stored field values without neutralizing leading spreadsheet formula characters. Administrator access is required to plant the value, and exploitation requires a privileged user to export and open the file in spreadsheet software.

The record

CVE
CVE-2022-45078
Published
Nov 7, 2023
Updated
Apr 28, 2026
Vendor
Solwin Infotech
Product
User Blocker
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
admin

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=n/a <=1.5.5 changes=[{"at":"1.5.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Solwin Infotech · User Blockerversion=n/a <=1.5.5 changes=[{"at":"1.5.6","status":"unaffected"}]

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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