Medium severity · published Jul 30, 2026
CVE-2026-15657
foreUP customer REST API allows authenticated users to read cleartext payment-processor merchant credentials
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability in the foreUP customer REST API allows any authenticated user to read cleartext payment-processor merchant credentials in the response body.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
foreUP · foreUP
API · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15657
kb.cert.org
https://kb.cert.org/vuls/id/790363
More from foreUP
8.1
CVE-2026-15658
foreUP customer REST API allows unauthenticated endpoint access