CVE-2025-9061 MEDIUM

CVE-2025-9061: Wilmer Core <= 2.4.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Vendor Mikado Themes
Product Wilmer Core
Weakness CWE-79 · XSS
Published September 9, 2025
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Wilmer Core plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 2.4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Explanation of Vulnerability in Simple Terms

02Summary

Wilmer Core versions up to 2.4.5 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component to affect other users or site functionality. Site administrators should update to a version newer than 2.4.5 to remediate this issue.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers and affect site functionality.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other visitors and site operations; user accounts and data may be compromised.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

September 9, 2025 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE