CVE-2026-0867 MEDIUM

CVE-2026-0867: Essential Widgets <= 3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Shortcodes

Vendor Catchthemes
Product Essential Widgets
Weakness CWE-79 · XSS
Published February 5, 2026
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 Essential Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ew-author, ew-archive, ew-category, ew-page, and ew-menu shortcodes in all versions up to, and including, 3.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: This vulnerability was partially fixed in version 3.0.

Explanation of Vulnerability in Simple Terms

02Summary

Essential Widgets versions 3.0 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects the entire site scope due to how the flaw propagates.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers and steal their session data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Visitors' accounts and data are at risk; attackers can deface content, steal credentials, or redirect users to malicious sites.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege authenticated account on the site; no user interaction required from victims.

Key dates

06Disclosure timeline

February 5, 2026 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE