Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wp-stripe-express/tags/1.28.0/include
- https://plugins.trac.wordpress.org/browser/wp-stripe-express/tags/1.28.0/include
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1a7dbb82-b484-4b86-b8d
FAQ
What is CVE-2026-8893?
CVE-2026-8893 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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. Th...
How severe is CVE-2026-8893?
CVE-2026-8893 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-8893?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.