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CVE-2026-4987

SureForms <= 2.5.2 - Unauthenticated Payment Amount Validation Bypass via 'form_id'

Published: Mar 28, 2026Updated: Apr 24, 2026 Sources: CVE List NVDCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 83.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-20

Affected Products

SureForms – Contact Form, Payment Form & Other Custom Form Builderbrainstormforce
On-prem
Web & CMS Plugins / site-builder
brainstormforcecommercialWeb & CMS Pluginsaka spectra, ultimate addons for elementor, spectra gutenberg blocks – website builder for the block editor

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://plugins.trac.wordpress.org/changeset/3488858/sureforms
plugins.trac.wordpress.org
https://www.wordfence.com/threat-intel/vulnerabilities/id/c4772b32-a730-44f2-b43c-f9bd5abb6541?source=cve
wordfence.com

Timeline

Published
Mar 28, 2026
Last Updated
Apr 24, 2026

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