Vulnerability Description
The SureForms – Contact Form, Payment Form & Other Custom Form Builder plugin for WordPress is vulnerable to Payment Amount Bypass in all versions up to, and including, 2.5.2. This is due to the create_payment_intent() function performing a payment validation solely based on the value of a user-controlled parameter. This makes it possible for unauthenticated attackers to bypass configured form payment-amount validation and create underpriced payment/subscription intents by setting form_id to 0.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/changeset/3488858/sureforms
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c4772b32-a730-44f2-b43
FAQ
What is CVE-2026-4987?
CVE-2026-4987 is a vulnerability with a CVSS score of 7.5 (HIGH). The SureForms – Contact Form, Payment Form & Other Custom Form Builder plugin for WordPress is vulnerable to Payment Amount Bypass in all versions up to, and including, 2.5.2. This is due to the creat...
How severe is CVE-2026-4987?
CVE-2026-4987 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4987?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.