CVE-2026-118377 mews/pos - Authentication Bypass

mews/pos through 2.0.0 contains an insufficient verification of data authenticity vulnerability caused by skipping check3DHash() in payment handlers, letting unauthenticated attackers forge payment results by submitting unverified callbacks.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-345

Vendor fix

Update to the latest version beyond 2.0.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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