CVE-2022-46803Network attack vector

Command execution via unescaped CSV formulas

Published Nov 7, 2023 · Updated Apr 28, 2026

CSV injection in Noptin Newsletter Team Noptin 1.9.5 and earlier allows remote attackers to plant formulas in subscriber CSV exports. Noptin writes subscriber-supplied field values into CSV exports without neutralizing leading formula characters interpreted by spreadsheet software. Exploitation requires an administrator to export and open the file; the formula can then execute commands in the spreadsheet user's context.

CVSS severity6.1
Medium
EPSS probability0.70%
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 Noptin Newsletter Team Noptin 1.9.5 and earlier allows remote attackers to plant formulas in subscriber CSV exports. Noptin writes subscriber-supplied field values into CSV exports without neutralizing leading formula characters interpreted by spreadsheet software. Exploitation requires an administrator to export and open the file; the formula can then execute commands in the spreadsheet user's context.

The record

CVE
CVE-2022-46803
Published
Nov 7, 2023
Updated
Apr 28, 2026
Vendor
Noptin Newsletter Team
Product
Noptin
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=n/a <=1.9.5 changes=[{"at":"1.10.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Noptin Newsletter Team · Noptinversion=n/a <=1.9.5 changes=[{"at":"1.10.0","status":"unaffected"}]

Published CVSS scores

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.

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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.

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Technologies

Your stack

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Your stack

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