CVE-2026-4086

| EUVD-2026-14010 MEDIUM
2026-03-21 Wordfence GHSA-x5f6-m38m-6rp5
6.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 21, 2026 - 04:00 vuln.today
EUVD ID Assigned
Mar 21, 2026 - 04:00 euvd
EUVD-2026-14010
CVE Published
Mar 21, 2026 - 03:26 nvd
MEDIUM 6.4

Description

The WP Random Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'cat', 'nocat', and 'text' shortcode attributes of the 'wp_random_button' shortcode in all versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the random_button_html() function directly concatenates the 'cat' and 'nocat' parameters into HTML data-attributes without esc_attr(), and the 'text' parameter into HTML content without esc_html(). 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.

Analysis

The WP Random Button WordPress plugin contains a Stored Cross-Site Scripting (XSS) vulnerability in versions up to and including 1.0 affecting all installations of this plugin. Authenticated attackers with Contributor-level or higher privileges can inject arbitrary JavaScript code through improperly sanitized shortcode attributes ('cat', 'nocat', and 'text'), which will execute in the browsers of any user viewing the affected pages. …

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Remediation

Within 30 days: Identify affected systems running all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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CVE-2026-4086 vulnerability details – vuln.today

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