CVE-2025-13966
Unknown Unknown - Not Provided

Stored XSS in Paypal Payment Shortcode Plugin Allows Script Injection

Publication date: 2025-12-12

Last updated on: 2025-12-12

Assigner: Wordfence

Description
The Paypal Payment Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'buttom_image' parameter of the [paypal-shortcode] shortcode in all versions up to, and including, 1.01 due to insufficient input sanitization and output escaping. 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.

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Meta Information

Published
2025-12-12
Last Modified
2025-12-12
Generated
2026-07-06
AI Q&A
2025-12-12
EPSS Evaluated
2026-07-05
NVD
CVE-2025-13966

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
paypal payment_shortcode *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Mitigation Strategies

Update the Paypal Payment Shortcode plugin for WordPress to a version later than 1.01 where the vulnerability is fixed. Additionally, restrict Contributor-level access and above to trusted users only, as the vulnerability requires authenticated users with such privileges to exploit. Implement input sanitization and output escaping for the 'buttom_image' parameter if custom code is used.

Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Paypal Payment Shortcode plugin for WordPress. It occurs via the 'buttom_image' parameter of the [paypal-shortcode] shortcode in all versions up to and including 1.01. Due to insufficient input sanitization and output escaping, authenticated users with Contributor-level access or higher can inject arbitrary web scripts into pages. These scripts execute whenever any user accesses the injected page.

Impact Analysis

The vulnerability allows attackers with Contributor-level access or higher to inject malicious scripts into web pages. This can lead to unauthorized actions such as stealing user credentials, session hijacking, defacement, or spreading malware to users who visit the affected pages. It compromises the integrity and security of the website and its users.

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