CVE-2026-86405

Summary

This vulnerability allows attackers to spoof cryptographic signatures in the PrestaShop Virtual POS Module, enabling unauthorized modifications to payment transactions. The flaw occurs due to improper validation of digital signatures, making it possible for malicious actors to forge valid-looking transactions.

Exploitability

Exploitation is relatively straightforward requiring only network access to the affected module, with no authentication required for signature verification, though successful exploitation requires understanding the signature format and generation process.

Blast radius

If exploited, this vulnerability could allow attackers to manipulate payment transactions across multiple stores using the affected PrestaShop module, potentially leading to unauthorized fund transfers and financial losses.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to version 26.9.1 or later to remediate this cryptographic signature verification flaw.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.