CVE-2025-3890
WordPress Simple PayPal Shopping Cart <= 5.1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- State
- Published
- Severity
- 6.4 Medium
- Published
- May 1, 2025
- Updated
- Apr 8, 2026
- Reserved
- Apr 22, 2025
Description
The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wp_cart_button' shortcode in all versions up to, and including, 5.1.3 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.
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 |
|---|---|
Simple Shopping Cartmra13 |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/93898bf8-cfed-44bf-9d68-a0167beba86a?source=cve
- https://plugins.trac.wordpress.org/browser/wordpress-simple-paypal-shopping-cart/tags/5.1.2/includes/wpsc-shortcodes-related.php#L20
- https://www.tipsandtricks-hq.com/ecommerce/simple-wp-shopping-cart-installation-usage-290#step-1-inserting-an-add-to-cart-button
- https://plugins.trac.wordpress.org/changeset/3284572/
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