CVE-2022-3463Public exploitNetwork attack vector

Spreadsheet formula execution via unescaped exported fields

Published Nov 7, 2022 · Updated May 1, 2025

CSV injection in WPManageNinja Fluent Forms before 4.3.13 allows remote attackers to plant spreadsheet formulas through public form fields. The entry exporter writes submitted field values into CSV cells without neutralizing formula-leading characters such as an equals sign. Exploitation requires an administrator to export the affected entry and open it in a spreadsheet application that evaluates formulas, where the injected formula executes with that user's access.

CVSS severity9.8
Critical
EPSS probability1.33%
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 WPManageNinja Fluent Forms before 4.3.13 allows remote attackers to plant spreadsheet formulas through public form fields. The entry exporter writes submitted field values into CSV cells without neutralizing formula-leading characters such as an equals sign. Exploitation requires an administrator to export the affected entry and open it in a spreadsheet application that evaluates formulas, where the injected formula executes with that user's access.

The record

CVE
CVE-2022-3463
Published
Nov 7, 2022
Updated
May 1, 2025
Vendor
WPManageNinja
Product
Fluent Forms
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.3.13 <4.3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPManageNinja · Fluent Formsversion=4.3.13 <4.3.13

Published CVSS scores

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

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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