HomeWordPress vulnerabilitiesPayment Button for PayPal
Payment Button for PayPal vulnerabilities
Payment Button for PayPal has 3 known vulnerabilities in this database. The most recent published record is dated 12 Aug 2026.
- Known vulnerabilities
- 3
- Active installs
- 4,000+
- Latest version
- 1.2.3.48
- Last updated
- 24 Sep 2026
- Most recent
- 12 Aug 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Security weakness CVE-2026-16990 | Medium 5.3 | Up to 1.2.3.44 | Fixed in a later version (latest 1.2.3.48) | 12 Aug 2026 |
| Broken access control CVE-2025-14463 | Medium 5.3 | Up to 1.2.3.41 | Fixed in a later version (latest 1.2.3.48) | 17 Jan 2026 |
| Cross-site scripting (XSS) CVE-2024-13401 | Medium 6.4 | Up to 1.2.3.35 | Fixed in a later version (latest 1.2.3.48) | 17 Jan 2025 |
Read the published descriptions
- CVE-2026-16990, 12 Aug 2026
- The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price server-side and trusts a client-supplied payment amount, allowing unauthenticated attackers to create a real PayPal order against the merchant for an arbitrary lower amount. CVE record
- CVE-2025-14463, 17 Jan 2026
- The Payment Button for PayPal plugin for WordPress is vulnerable to unauthorized order creation in all versions up to, and including, 1.2.3.41. This is due to the plugin exposing a public AJAX endpoint (`wppaypalcheckout_ajax_process_order`) that processes checkout results without any authentication or server-side verification of the PayPal transaction. This makes it possible for unauthenticated attackers to create arbitrary orders on the site with any chosen transaction ID, payment status, product name, amount, or customer information via direct POST requests to the AJAX endpoint, granted they can bypass basic parameter validation. If email sending is enabled, the plugin will also trigger purchase receipt emails to any email address supplied in the request, leading to order database corruption and unauthorized outgoing emails without any real PayPal transaction taking place. CVE record
- CVE-2024-13401, 17 Jan 2025
- The Payment Button for PayPal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wp_paypal_checkout' shortcode in all versions up to, and including, 1.2.3.35 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. CVE record
What to do if you run Payment Button for PayPal
If you run Payment Button for PayPal, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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