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TI-2026-13940 Aliases CVE-2026-16738GHSA-4vwp-q9wh-xxq2

Conekta Payment Gateway < 6.2.2 - Unauthenticated Order Payment Completion via Webhook Forgery

Priority LOW 30CWE-284Published · 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
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

The Conekta Payment Gateway WordPress plugin before 6.2.2 does not verify the authenticity of incoming payment gateway webhook notifications, nor bind the confirmed payment to the targeted order or verify its amount, allowing unauthenticated attackers to mark arbitrary orders as paid without payment.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Conekta Payment Gateway (Unknown): 6.2.2

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
UnknownConekta Payment Gatewaybefore 6.2.26.2.2Patch availableCNA
  • Conekta Payment Gateway VendorUnknown Affected before 6.2.2 Fixed in 6.2.2 Patch available CNA

Remediation

  • Fix · CNA Conekta Payment Gateway (Unknown) Fixed in 6.2.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16738
  2. 2026-10-03 Alias added: GHSA-4vwp-q9wh-xxq2

References

Sources