ApexChat <= 1.3.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via plugin settings

2023-04-18 00:00

Yuki Haruma

Strategic Overview

Status

Patched in 1.3.2

Affected PluginBlazeo

Affected Version<= 1.3.1

CVSS4.4Medium

CVECVE-2023-28414

View all Blazeo vulnerabilities

Vulnerability Overview

The ApexChat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin settings in versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 1.3.2, 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-2023-28414 https://www.wordfence.com/threat-intel/vulnerabilities/id/dbe8d164-85c7-444d-80ad-4d03151b939b

CVSS Vector

4.4

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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