CVE-2026-4086
WP Random Button <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'cat' Shortcode Attribute
- State
- Published
- Severity
- 6.4 Medium
- Published
- Mar 21, 2026
- Updated
- Apr 8, 2026
- Reserved
- Mar 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
WP Random Buttonnewbiesup |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0b9e11f5-5a05-4867-abd8-fb07c84a49b0?source=cve
- https://plugins.trac.wordpress.org/browser/wp-random-button/trunk/wp-random-button.php#L46
- https://plugins.trac.wordpress.org/browser/wp-random-button/tags/1.0/wp-random-button.php#L46
- https://plugins.trac.wordpress.org/browser/wp-random-button/trunk/wp-random-button.php#L50
- https://plugins.trac.wordpress.org/browser/wp-random-button/tags/1.0/wp-random-button.php#L50
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