The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the automatic redirect URL setting in all versions up to and including 4.7.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Scott Paterson Easy PayPal Shopping Cart plugin <= 1.1.10 versions.

Cross-Site Request Forgery (CSRF) vulnerability in Scott Paterson Contact Form 7 – PayPal & Stripe Add-on plugin <= 1.9.3 versions.

Cross-Site Request Forgery (CSRF) vulnerability in WooCommerce PayPal Payments plugin <= 2.0.4 versions.

The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Cross-Site Request Forgery. This is due to missing nonce validation in the ls_parse_vcita_callback() function. This makes it possible for unauthenticated attackers to modify the plugin's settings and inject malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Event Registration Calendar By vcita plugin, versions up to and including 3.9.1, and Online Payments – Get Paid with PayPal, Square & Stripe plugin, for WordPress are vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 1.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with the edit_posts capability, such as contributors and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in DgCult Exquisite PayPal Donation plugin <= v2.0.0 versions.

The Quick Paypal Payments WordPress plugin before 5.7.26.4 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Fullworks Quick Paypal Payments plugin <= 5.7.25 versions.

Cross-Site Request Forgery (CSRF) vulnerability in TriniTronic Nice PayPal Button Lite plugin <= 1.3.5 versions.