CVE-2026-8423 MEDIUM

CVE-2026-8423: JaviBola Custom Theme Test <= 2.0.5 - Cross-Site Request Forgery

Vendor Javibola
Product JaviBola Custom Theme Test
Weakness CWE-352 · CSRF
Published May 20, 2026
Last update May 20, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The JaviBola Custom Theme Test plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.5. This is due to missing or incorrect nonce validation on the options page. This makes it possible for unauthenticated attackers to change the site's active theme by modifying the jbct_theme option via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Explanation of Vulnerability in Simple Terms

02Summary

JaviBola Custom Theme Test versions up to 2.0.5 contain a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without the admin's knowledge or consent. The vulnerability requires the victim to visit the attacker's page while authenticated.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.

Potential impact on your site

04Site Impact

An admin's account can be used to make unintended changes to the site if they visit a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Victim must be logged in and visit an attacker-controlled page; no special privileges required.

Key dates

06Disclosure timeline

May 20, 2026 CVE published
May 20, 2026 Record updated