CVE-2026-118377 Details
Description
mews/pos through 2.0.0 contains an insufficient verification of data authenticity vulnerability that allows unauthenticated attackers to forge payment results by submitting unverified callbacks. GarantiPos, PayForPos and InterPos 3D Pay and 3D Host handlers skip check3DHash(), letting attackers post tampered status, amount or order ID fields to complete orders without paying.
A vulnerability exists in the Mews POS library, specifically in versions through 2.0.0, due to inadequate verification of data authenticity. This flaw allows unauthenticated attackers to manipulate payment results by sending unverified callbacks. The issue arises in the GarantiPos, PayForPos, and InterPos gateways, particularly within the 3D Pay and 3D Host payment models. These handlers fail to execute a crucial hash verification, enabling attackers to alter transaction details such as status, amount, or order ID, and complete orders without actual payment.
Users can update to Mews POS version 2.0.0 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 28, 2026CISA-ADP
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-345 | Insufficient Verification of Data Authenticity | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mews/pos | <= 2.0.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Oct 28, 2026 | New CVE Received | [email protected] |