High severity · published Aug 6, 2026
CVE-2026-13399
Payment Plugins for PayPal WooCommerce < 2.0.20 - Unauthenticated Payment Bypass via Reuse of a Completed PayPal Order
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.20 does not have proper authorization checks on a REST endpoint, allowing unauthenticated users to bypass payments
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PP
Payment Plugins for PayPal WooCommerce ·
before 2.0.20 · source: vendor
Affected product
PP
Payment Plugins for PayPal WooCommerce
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13399
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13399
wpscan.com
https://wpscan.com/vulnerability/6ae19ba0-26ba-4ffa-94e3-3fe32cedcae1/
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