Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Network-accessible form requires no authentication; AC:H because exploitation requires a variable-priced form configuration and precise parameter interception; integrity impact only - no confidentiality or availability consequence.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced (variable/hidden) payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not affected.
AnalysisAI
SureForms WordPress plugin before 2.11.1 permits unauthenticated attackers to submit manipulated payment amounts below the configured price on any form using a dynamically-sourced or hidden variable payment field, enabling financial fraud against site operators. The integrity bypass is confined to forms with variable pricing; fixed-price forms are explicitly unaffected. A publicly available proof-of-concept exists via WPScan, and a vendor patch is available in version 2.11.1 - though no CISA KEV listing confirms active mass exploitation at time of analysis.
Technical ContextAI
SureForms is a WordPress form-builder plugin that supports payment integrations where the payment amount can be either fixed (hard-coded server-side) or dynamically sourced from variable or hidden client-supplied fields. The root cause is the absence of server-side validation that reconciles the submitted payment amount against a minimum or expected price configured by the site administrator. When the amount originates from a hidden or variable HTML form field, the server trusts the client-supplied value without enforcing a floor. No CWE was formally assigned, but this aligns with CWE-20 (Improper Input Validation) and CWE-345 (Insufficient Verification of Data Authenticity) - the server fails to authenticate that the submitted amount meets the operator-configured threshold. CPE data identifies the affected package as cpe:2.3:a:unknown:sureforms:*:*:*:*:*:*:*:*, with the vendor field unresolved in the NVD CPE registry.
RemediationAI
Upgrade SureForms to version 2.11.1 or later, which introduces proper server-side validation of submitted payment amounts against configured price thresholds. This is the only confirmed fix; the vendor patch is available and should be applied immediately on any site accepting payments via dynamic or variable amount forms. As a compensating control prior to patching, administrators should convert all payment forms to use a fixed configured price, which eliminates the vulnerable code path entirely - note this may break legitimate variable-pricing use cases such as custom amount donations or tiered subscriptions and will require form reconfiguration. Alternatively, disabling payment functionality on the affected forms until patching is feasible is the safest interim measure. The WPScan advisory at https://wpscan.com/vulnerability/bd738da7-f950-4da9-bcc1-c1fe845d7faa/ should be monitored for additional guidance.
CSV injection (CWE-1236) in Brainstorm Force SureForms versions ≤ 2.1.1 enables remote unauthenticated attackers to embe
Resource exhaustion in Brainstorm Force SureForms before version 2.1.3 enables unauthenticated remote attackers to submi
The SureForms WordPress plugin before 1.4.4 does not have proper authorisation check when updating its settings via the
The SureForms - Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to arbitrary file deletion d
The SureForms - Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in a
The SureForms WordPress plugin before 1.4.4 does not sanitise and escape some of its Form settings, which could allow hi
The SureForms WordPress plugin before 1.4.4 does not sanitise and escape some of its Form settings, which could allow hi
Unauthenticated information disclosure in SureForms (WordPress form-builder plugin by Brainstorm Force) versions through
The SureForms WordPress plugin before 1.7.2 does not sanitise and escape a parameter before outputting it back in the pa
The SureForms - Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to Information Exposure in a
Same technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-43625
GHSA-9r96-r77r-wwjr