Custom 404 Pro <= 3.10.0 - Unauthenticated Stored Cross-Site Scripting via logging

2023-12-27 00:00

Kyle Sanchez

Strategic Overview

Status

Patched in 3.10.1

Affected PluginCustom 404 Pro

Affected Version<= 3.10.0

CVSS7.2High

CVECVE-2023-51540

View all Custom 404 Pro vulnerabilities

Vulnerability Overview

The Custom 404 Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several logged parameters in all versions up to, and including, 3.10.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.10.1, 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-2023-51540 https://www.wordfence.com/threat-intel/vulnerabilities/id/1106e7b2-eac7-459d-8eb3-fe84c76f3b67

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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