CVE-2022-46803

Simple Newsletter Plugin – Noptin <= 1.10.3 - Unauthenticated CSV Injection

2023-01-27 00:00

Strategic Overview

Status: Patched in 1.11.0
Affected Plugin: Simple Newsletter Plugin – Noptin
Affected Version: <= 1.10.3
CVSS: 7.2High
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2022-46803

View all Simple Newsletter Plugin – Noptin vulnerabilities

At a glance

CVE-2022-46803 is a high-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Simple Newsletter Plugin WordPress plugin, affecting versions <= 1.10.3. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.11.0; sites on affected versions should update now. Disclosed January 2023, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to CSV Injection in all versions up to, and including, 1.10.3. This makes it possible for unauthenticated attackers 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 privileges on the target site, 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 1.11.0, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple Newsletter Plugin 1.11.0 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-46803 https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1de2d6-d4a0-4770-be38-9bd09b2243b7 https://nvd.nist.gov/vuln/detail/CVE-2022-46803

Related records

Other vulnerabilities in Simple Newsletter Plugin – Noptin

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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