Download Monitor, CVE-2026-3124

CVE, Research URL: CVE-2026-3124
Home page URL: Security reports for Download Monitor
Application: Download Monitor
Published on: Mar 30, 2026
Research Description: The Download Monitor plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.7 via the executePayment() function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to complete arbitrary pending orders by exploiting a mismatch between the PayPal transaction token and the local order, allowing theft of paid digital goods by paying a minimal amount for a low-cost item and using that payment token to finalize a high-value order.
Affected versions: max 5.1.8.
Status: vulnerable