CVE-2025-13133Network attack vector

Code execution via unneutralized exported CSV formulas

Published Nov 18, 2025 · Updated Apr 8, 2026

CSV injection in Simple User Import Export 1.1.7 and earlier allows remote authenticated users to place formulas in exported user data. The Import/export users function writes user-controlled field values into CSV cells without neutralizing formula-leading characters. Administrator-level access is required to seed the data, and code executes only when a recipient opens the export in a spreadsheet configuration that evaluates it.

CVSS severity6.6
Medium
EPSS probability0.27%
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 Simple User Import Export 1.1.7 and earlier allows remote authenticated users to place formulas in exported user data. The Import/export users function writes user-controlled field values into CSV cells without neutralizing formula-leading characters. Administrator-level access is required to seed the data, and code executes only when a recipient opens the export in a spreadsheet configuration that evaluates it.

The record

CVE
CVE-2025-13133
Published
Nov 18, 2025
Updated
Apr 8, 2026
Vendor
vaniivan
Product
Simple User Import Export
Classifications
CWE-1236, T1204.002
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=1.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

vaniivan · Simple User Import Exportversion=0 <=1.1.7

Published CVSS scores

6.6WordfenceCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/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.

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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
Privilegesadmin
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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