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Signature-Spoofing

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critical advisory

Cryptographic Signature Spoofing in Sipay PrestaShop Virtual POS Module

CVE-2026-86405 describes a critical signature validation flaw in the Sipay PrestaShop Virtual POS Module allowing attackers to spoof transaction integrity checks and manipulate payment requests.

PrestaShop Virtual POS Module e-commerce financial-services vulnerability signature-spoofing
1t 1c