3.7
LOW CVSS 3.1
CVE-2026-17016
Restore PayPal Standard for WooCommerce <= 3.1.0 - Payment Bypass via PDT Underpayment
Description

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully paid when the PayPal Data Transfer feature is enabled.

INFO

Published Date :

Aug. 10, 2026, 7:16 a.m.

Last Modified :

Aug. 26, 2026, 4:31 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-17016 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
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 LOW 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update plugin to fix payment validation issue and ensure order totals are met.
  • Update the Accept PayPal & Stripe plugin.
  • Verify payment amounts against order totals.
  • Ensure PayPal Data Transfer is configured securely.
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-2026-17016.

URL Resource
https://wpscan.com/vulnerability/fb73461f-521a-401b-98d0-5f32272368b8/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-17016 is associated with the following CWEs:

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-2026-17016 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-17016 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 Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 11, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
    Added CWE CWE-284
    Added SSVC {'id': 'CVE-2026-17016', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-11T20:17:51.217414Z'}
  • New CVE Received by [email protected]

    Aug. 10, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'Unknown', 'product': 'Accept PayPal & Stripe with Subscriptions for WooCommerce', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '3.1.0'}], 'defaultStatus': 'unknown'}]
    Added Description The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully paid when the PayPal Data Transfer feature is enabled.
    Added Reference https://wpscan.com/vulnerability/fb73461f-521a-401b-98d0-5f32272368b8/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.