CVE-2026-16738
Conekta Payment Gateway < 6.2.2 - Unauthenticated Order Payment Completion via Webhook Forgery
Description
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.
INFO
Published Date :
Aug. 22, 2026, 6:16 a.m.
Last Modified :
Oct. 12, 2026, 4:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-16738
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the Conekta Payment Gateway plugin to 6.2.2.
- Verify webhook authenticity.
- Validate payment details.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-16738.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-16738 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-16738
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-16738 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-16738 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 12, 2026
Action Type Old Value New Value Added Translation Title: Conekta Payment Gateway, Description: El plugin de WordPress Conekta Payment Gateway anterior a la versión 6.2.2 no verifica la autenticidad de las notificaciones de webhook entrantes de la pasarela de pago, ni vincula el pago confirmado al pedido objetivo ni verifica su importe, lo que permite a atacantes no autenticados marcar pedidos arbitrarios como pagados sin realizar el pago. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 23, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-284 Added SSVC {'id': 'CVE-2026-16738', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-23T15:27:19.222935Z'} -
New CVE Received by [email protected]
Aug. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'Conekta Payment Gateway', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '6.2.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description 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. Added Reference https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/