CVE-2026-121633

MEDIUM 5.3

Order Tracking < 3.6.0 - Unauthenticated Payment Confirmation Forgery via PayPal IPN Listener

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

The Order Tracking WordPress plugin before 3.6.0 does not verify that a PayPal payment notification was sent to the merchant's account, or that its amount matches the order total, before marking an order as paid, which could allow unauthenticated attackers to mark arbitrary orders as paid using a trivial payment to their own PayPal account.

Vendor	unknown
Product	order tracking
Published	Nov 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Unknown / Order Tracking

0 < 3.6.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wpscan.com: https://wpscan.com/vulnerability/5eafeeb0-0bea-4647-a178-d5a2f2282afa/

Credits

Vũ Quang Huy WPScan