CVE-2026-103299 Details
Description
The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured.
An authentication bypass vulnerability has been identified in the Payment Gateway WordPress plugin, specifically in versions through 2.2.0. The issue arises because the plugin does not verify if a shared secret is configured before using it to authenticate payment-notification callbacks from the bank. This oversight allows unauthenticated attackers to forge valid notifications, marking any WooCommerce order as paid on installations where the secret is not set. Additionally, the same callback can be used to change any pending order to a failed status, regardless of the secret's configuration.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Oct 26, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/0a1c3070-181d-49ea-9488-d0d7e4be419c/ | [email protected] | AdvisoryExploitPartial Content |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Payment Gateway | <= 2.2.0 (semver) |
CPE
Remediation
| |
| Nexi Alpha Bank | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 30, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |
Volerion