CVE-2026-103319 Details
Description
The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid, cancelled or failed.
A vulnerability exists in the OPay Payment Gateway for WooCommerce WordPress plugin, versions through 2.5.5. The issue arises because the plugin does not adequately verify that payment notifications come from the payment provider. By default, the secret used to validate notification signatures is empty, allowing unauthenticated attackers to forge notifications and manipulate order statuses, marking them as paid, cancelled, or failed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 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/c07f15a0-3c15-429f-bcde-1511ad658c6c/ | [email protected] | AdvisoryPartial Content |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| OPay | <= 2.5.5 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 26, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |