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Fencer Intel
critical 9.8

CVE-2026-85531 json

Payment Validation Bypass in Sipay Electronic Money's OpenCart 3.x

published last mo. modified 30d ago also EUVD-2026-95747

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module allows Signature Spoofing by Improper Validation.

This issue affects OpenCart Virtual POS Module: from 26.8.2 before 26.9.1.

Patch / fix

  • Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module 26.9.1

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
30d ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.