CVE-2026-57677

CRITICAL 9.8

WordPress Novalnet Payment Gateway for WooCommerce plugin <= 12.10.3 - PHP Object Injection vulnerability

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

Unauthenticated PHP Object Injection in Novalnet Payment Gateway for WooCommerce <= 12.10.3 versions.

CWE	CWE-502
Vendor	novalnet
Product	novalnet payment gateway for woocommerce
Published	Jul 2, 2026
Last Updated	Jul 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Novalnet / Novalnet Payment Gateway for WooCommerce

n/a ≤ 12.10.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/woocommerce-novalnet-gateway/vulnerability/wordpress-novalnet-payment-gateway-for-woocommerce-plugin-12-10-3-php-object-injection-vulnerability?_s_id=cve

Credits

qdtad | Patchstack Bug Bounty Program