Wise Chat <= 2.8.3 - CSV Injection

2020-07-09 00:00

Strategic Overview

Status: Patched in 2.8.4
Affected Plugin: Wise Chat
Affected Version: <= 2.8.3
CVSS: 5.5Medium
Weakness type: CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE: CVE pending

At a glance

This record tracks a medium-severity Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the Wise Chat WordPress plugin, affecting versions <= 2.8.3. It carries a CVSS score of 5.5 (reachable over the network). The issue is fixed in version 2.8.4; sites on affected versions should update now. Disclosed July 2020, reported by Vishnupriya Ilango.

Vulnerability Overview

The Wise Chat plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 2.8.3. 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.

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Remediation

Update to version 2.8.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Wise Chat: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Wise Chat 2.8.4 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/c7112f34-3055-4033-82ba-d59489cd8c6b

Related records

Other vulnerabilities in Wise Chat

CVSS Vector

5.5

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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