CVE-2026-85531 Payment Validation Bypass in Sipay Electronic Money's OpenCart 3.x
Attackers can bypass payment validation by spoofing cryptographic signatures in the OpenCart Virtual POS Module, allowing unauthorized transactions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85531?
CVE-2026-85531 is a critical vulnerability in Sipay Electronic Money and Payment Services Inc. OpenCart Virtual POS Module, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-347
Which versions are affected by CVE-2026-85531?
How do I fix CVE-2026-85531?
No fix has been published for CVE-2026-85531 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-85531 being exploited?
There is no known exploitation of CVE-2026-85531 in the wild and no public exploit code.
Sources
Also known as GHSA-9f78-prj9-gr67.