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TI-2026-81020 Aliases CVE-2026-103332GHSA-qxp3-7pvj-q7qx

Improper authentication in Payex Payment Gateway for WooCommerce

Priority LOW 29CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.

Summary

The Payex Payment Gateway for Woocommerce WordPress plugin through 1.2.10 does not properly verify the authenticity of incoming payment notifications (CWE-287). The validation secret it relies on is empty by default. An unauthenticated remote attacker can forge a valid payment confirmation and mark any order as paid. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Payex Payment Gateway for Woocommerce WordPress plugin through 1.2.10 does not properly verify the authenticity of incoming payment notifications, relying on a validation secret that is empty by default, allowing unauthenticated attackers to forge a valid payment confirmation and mark any order as paid.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00176 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownPayex Payment Gateway for Woocommerceup to 1.2.10—No fix listedCNA
  • Payex Payment Gateway for Woocommerce VendorUnknown Affected up to 1.2.10 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Payex Payment Gateway for Woocommerce.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-103332
  2. 2026-10-27 Alias added: GHSA-qxp3-7pvj-q7qx
  3. 2026-10-28 CVSS score added · CISA ADP
  4. 2026-10-28 Weakness changed · CISA ADP
  5. 2026-10-28 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences