CVE-2026-4987SureForms <= 2.5.2 - Unauthenticated Payment Amount Validation Bypass via 'form_id'
Updated under an hour ago ()
Does this affect you?
It affects brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-20
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Apr 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder brainstormforce:sureforms_contact_form_payment_form_and_other_custom_form_builder (from the name) | through 2.5.2 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c4772b32-a730-44f2-b43c-f9bd5abb6541?source=cve
- https://plugins.trac.wordpress.org/changeset/3488858/sureforms
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.