Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/mewebstudio/pos
- https://github.com/mewebstudio/pos/blob/50ed2bfe4f8980b8b0c47996de571943fa58d7ad
- https://github.com/mewebstudio/pos/blob/50ed2bfe4f8980b8b0c47996de571943fa58d7ad
- https://github.com/mewebstudio/pos/commit/7c59d42bc49483c7c54999d757cb67055d9f73
- https://github.com/mewebstudio/pos/issues/306
- https://github.com/mewebstudio/pos/pull/305
- https://www.vulncheck.com/advisories/mews-pos-through-2.0.0-missing-hash-verific
FAQ
What is CVE-2026-118377?
CVE-2026-118377 is a vulnerability with a CVSS score of 7.5 (HIGH). 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. Garan...
How severe is CVE-2026-118377?
CVE-2026-118377 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-118377?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.