CVE-2026-4987Network attack vector

Underpriced payment intents via trusted form_id

Published Mar 28, 2026 · Updated Mar 28, 2026

Improper input validation in Brainstorm Force SureForms 2.5.2 and earlier allows remote attackers to create underpriced payment intents. The create_payment_intent() function trusts a user-controlled form_id value of 0 when validating the configured payment amount. Unauthenticated access to a published payment form is sufficient, enabling payment or subscription intents below the configured amount.

CVSS severity7.5
High
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Brainstorm Force SureForms 2.5.2 and earlier allows remote attackers to create underpriced payment intents. The create_payment_intent() function trusts a user-controlled form_id value of 0 when validating the configured payment amount. Unauthenticated access to a published payment form is sufficient, enabling payment or subscription intents below the configured amount.

The record

CVE
CVE-2026-4987
Published
Mar 28, 2026
Updated
Mar 28, 2026
Vendor
Presto Made, Inc.
Product
SureForms
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=2.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Presto Made, Inc. · SureFormsversion=* <=2.5.2

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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