CVE-2026-103324: CWE-345 Insufficient Verification of Data Authenticity in Cardinity Payment Gateway for WooCommerce
Description
The Cardinity Payment Gateway for WooCommerce WordPress plugin before 3.4.2 does not properly verify the authenticity of the payment notifications it receives, as the secret used to sign them is empty by default, allowing unauthenticated attackers to forge an approved-payment notification and mark arbitrary orders as paid, or force them to failed.
CVSS v3.1
Score 5.3medium
Affected software
Cardinity Payment Gateway for WooCommerce
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103324 describes an insufficient verification of data authenticity (CWE-345) in the Cardinity Payment Gateway for WooCommerce WordPress plugin before version 3.4.2. The plugin fails to properly verify payment notification authenticity because the secret used for signing these notifications is empty by default. This flaw allows unauthenticated attackers to forge payment notifications, potentially marking orders as paid or failed without legitimate payment confirmation.
Potential Impact
The vulnerability allows an unauthenticated attacker to manipulate order statuses by forging payment notifications. This can lead to financial discrepancies such as marking unpaid orders as paid or forcing orders to failed status, impacting order processing integrity. There is no direct confidentiality or availability impact reported.
Mitigation Recommendations
Upgrade the Cardinity Payment Gateway for WooCommerce plugin to version 3.4.2 or later, where this issue is fixed. Since the affected versions are explicitly before 3.4.2, applying this official fix will remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-30T12:25:54.509Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad07aec2cdf04f65610e2c2
Added to database: 10/15/2026, 07:04:12 UTC
Last enriched: 10/15/2026, 07:18:56 UTC
Last updated: 10/15/2026, 19:00:28 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.