Newsletter Lite <= 4.9.2 - Authenticated (Admin+) Command Injection

2023-10-05 00:00

Karolis Narvilas

Strategic Overview

Status

Patched in 4.9.3

Affected PluginNewsletters

Affected Version<= 4.9.2

CVSS6.6Medium

CVECVE-2023-4797

View all Newsletters vulnerabilities

Vulnerability Overview

The Newsletters plugin for WordPress is vulnerable to Command Injection in all versions up to, and including, 4.9.2 via the emailarchive_olderthan parameter. This is due to insuffcient validation on user supplied input being passed to eval. This makes it possible for authenticated attackers, with administrator-level access and above, to execute code on the server.

Technical Analysis

REMEDIATION: Update to version 4.9.3, or a newer patched version --- IDENTIFIER: CWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

External References

https://www.cve.org/CVERecord?id=CVE-2023-4797 https://www.wordfence.com/threat-intel/vulnerabilities/id/b409d2a5-3c4c-4a1e-b222-e2df7257b81f

CVSS Vector

6.6

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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