CVE-2026-8893
MediumCVSS 6.4Summary
The Express Payment For Stripe plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via the 'type' attribute of the [stripe-express] shortcode in versions up to and including 1.28.0. This is due to insufficient input sanitization and output escaping on the shortcode attribute value.
Risk Assessment
Authenticated attackers with contributor-level access and above can inject arbitrary web scripts that will execute whenever a user accesses an injected page. This poses a significant risk to user security and site integrity.
Recommendation
It is recommended to update the plugin to the latest version to mitigate this vulnerability. Additionally, conducting a security audit to identify and remove potential script injections is advisable.
Original NVD description (English source)
The Express Payment For Stripe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'type' attribute of the [stripe-express] shortcode in versions up to, and including, 1.28.0. This is due to insufficient input sanitization and output escaping on the shortcode attribute value, which is concatenated into an HTML attribute in the rendered output of the register_shortcode() function without being passed through esc_attr() or any other escaping function. 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.