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Fencer Vulns
medium 5.3

CVE-2026-92400 json

Payment Gateway for PayPal on WooCommerce < 9.2.1 - Unauthenticated Payment Bypass via Sandbox IPN Environment Confusion

published 2026-09-21 49 d ago modified 2026-09-22 47 d ago also EUVD-2026-83870

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

The Payment Gateway for PayPal on WooCommerce WordPress plugin before 9.2.1 does not verify that an incoming payment notification was confirmed in the store's configured payment environment or paid to the store's own merchant account before marking an order complete, allowing unauthenticated users to mark their own orders as paid using a genuine transaction from a payment sandbox they control.

Patch / fix

  • Unknown Payment Gateway for PayPal on WooCommerce 9.2.1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
49 d ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/3dcee743-a95d-4233-b78e-8449a6cc8aea/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Unknown Payment Gateway for PayPal on WooCommerce

Classification

Weakness
  • CWE-345 Insufficient Verification of Data Authenticity
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.