CVE-2026-118377
mews/pos through 2.0.0 Missing Hash Verification in 3D Pay and 3D Host Callbacks
mewebstudio pos
CVSS
8.7HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- posaffected: all versions through 2.0.0CVE List
References 7
- github.com/mewebstudio/pos/pull/305Fixvia CVE List
- github.com/mewebstudio/pos/commit/7c59d42bc49483c7c54999d757cb67055d9f732aFixvia CVE List
- vulncheck.com/advisories/mews-pos-through-2.0.0-missing-hash-verification-in-3d-pay-and-3d-host-callbacksAdvisoryvia CVE List
- github.com/mewebstudio/pos/issues/306Referencevia CVE List
- github.com/mewebstudio/pos/blob/50ed2bfe4f8980b8b0c47996de571943fa58d7ad/src/Gateway/PayForPos.php#L135-L150Referencevia CVE List
- github.com/mewebstudio/pos/blob/50ed2bfe4f8980b8b0c47996de571943fa58d7ad/src/Gateway/InterPos.php#L134-L149Referencevia CVE List
- github.com/mewebstudio/posReferencevia CVE List