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Medium severity · published May 1, 2025
CVE-2025-3890
WordPress Simple PayPal Shopping Cart <= 5.1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
5.4
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Simple Shopping Cart · mra13
through 5.1.3 · source: vendor
WS
Wordpress Simple Paypal Shopping Cart · Tipsandtricks-hq
before 5.1.4 · source: NVD
Affected product
SS
Simple Shopping Cart
mra13
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3890
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3890
Product
https://plugins.trac.wordpress.org/browser/wordpress-simple-paypal-shopping-cart/tags/5.1.2/includes/wpsc-shortcodes-related.php#L20
Product
https://plugins.trac.wordpress.org/changeset/3284572/
Product
https://www.tipsandtricks-hq.com/ecommerce/simple-wp-shopping-cart-installation-usage-290#step-1-inserting-an-add-to-cart-button
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/93898bf8-cfed-44bf-9d68-a0167beba86a?source=cve
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