Newsletter <= 7.6.8 - Reflected Cross-Site Scripting

2023-03-27 00:00

Gen Sato

Strategic Overview

Status

Patched in 7.6.9

Affected PluginNewsletter – Send awesome emails from WordPress

Affected Version<= 7.6.8

CVSS4.7Medium

CVECVE-2023-27922

View all Newsletter – Send awesome emails from WordPress vulnerabilities

Vulnerability Overview

The Newsletter plugin for WordPress may be vulnerable to Reflected Cross-Site Scripting via the $_SERVER['REQUEST_URI'] parameter in versions up to, and including, 7.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a victim into performing an action such as clicking on a link. Only victims using older browser should be impacted as newer browsers urlencode the REQUEST_URI parameter by default

Technical Analysis

REMEDIATION: Update to version 7.6.9, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2023-27922 https://www.wordfence.com/threat-intel/vulnerabilities/id/fa49346c-726e-41f9-8a74-adaa4a8fa5d9

CVSS Vector

4.7

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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