CVE-2022-45810

Icegram Express <= 5.5.2 - Unauthenticated CSV Injection

2023-02-06 00:00

Strategic Overview

Status: Patched in 5.5.3
Affected Plugin: Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress
Affected Version: <= 5.5.2
CVSS: 6.5Medium
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2022-45810

View all Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress vulnerabilities

At a glance

CVE-2022-45810 is a medium-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the Email Subscribers & Newsletters WordPress plugin, affecting versions <= 5.5.2. It carries a CVSS score of 6.5 (reachable over the network). Exploitation requires no authentication. The issue is fixed in version 5.5.3; sites on affected versions should update now. Disclosed February 2023, reported by Kévin Mosbahi (Mika).

Vulnerability Overview

The Icegram Express plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 5.5.2. This allows 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, 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 5.5.3, 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: Email Subscribers & Newsletters 5.5.3 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-2022-45810 https://www.wordfence.com/threat-intel/vulnerabilities/id/a8077d07-acaf-40f2-bc0f-e28a44ead94c https://nvd.nist.gov/vuln/detail/CVE-2022-45810

Related records

Other vulnerabilities in Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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