Medium severity · published Jul 14, 2026
CVE-2026-11567
SureForms < 2.11.1 - Unauthenticated Payment Amount Bypass
5.9
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
SureForms ·
before 2.11.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-11567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-11567
wpscan.com
https://wpscan.com/vulnerability/bd738da7-f950-4da9-bcc1-c1fe845d7faa/
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