Custom Login Page <= 2.0 - Authenticated (Administrator+) Stored Cross-Site Scripting

2023-02-23 00:00

Mahesh Nagabhairava

Strategic Overview

Status

Unpatched

Affected PluginCustom Login Page

Affected Version<= 2.0

CVSS4.4Medium

CVECVE-2023-26012

View all Custom Login Page vulnerabilities

Vulnerability Overview

The Custom Login Page plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 2.0 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 affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- 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-2023-26012 https://www.wordfence.com/threat-intel/vulnerabilities/id/44cde2d1-8cb4-4185-a7e6-58a2bec0dae9

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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