CVE-2025-13133

Simple User Import Export <= 1.1.7 - Authenticated (Admin+) CSV Injection

2025-11-17 20:52

Strategic Overview

Status: Patched in 1.1.8
Affected Plugin: Simple User Import Export
Affected Version: <= 1.1.7
CVSS: 6.6Medium
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2025-13133

View all Simple User Import Export vulnerabilities

At a glance

CVE-2025-13133 is a medium-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Simple User Import Export WordPress plugin, affecting versions <= 1.1.7. It carries a CVSS score of 6.6 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 1.1.8; sites on affected versions should update now. Disclosed November 2025, reported by Ivan Cese.

Vulnerability Overview

The Simple User Import Export plugin for WordPress is vulnerable to CSV Injection in all versions up to, and including, 1.1.7 via the 'Import/export users' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-1236: Improper Neutralization of Formula Elements in a CSV File

The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

Remediation

Update to version 1.1.8, or a newer patched version

How does WordSec protect against this?

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple User Import Export 1.1.8 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-13133 https://www.wordfence.com/threat-intel/vulnerabilities/id/39ec49b4-f0f3-4ec7-b11b-ce808c025577 https://nvd.nist.gov/vuln/detail/CVE-2025-13133

CVSS Vector

6.6

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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