Easy Digital Download <= 3.5.2 - Insufficient Verification to Order Manipulation
Vulnerability Description
The Easy Digital Downloads plugin for WordPress is vulnerable to Order Manipulation in all versions up to, and including, 3.5.2 due to an order verification bypass. The verification is unconditionally skipped when the POST body includes verification_override=1. Because this value is attacker-supplied, an unauthenticated actor can submit a forged IPN and have it treated as verified, even on production sites and with verification otherwise enabled. A valid PayPal transaction id is needed, restricting order manipulation to orders placed by the attacker. This, in turn, requires them to have a customer account.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Jamie Davies
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4c63154e-9413-47ea-a740-441618266adf?source=cve
- https://github.com/awesomemotive/easy-digital-downloads/blob/main/includes/gateways/paypal/ipn.php
- https://github.com/awesomemotive/easy-digital-downloads/blob/main/src/Gateways/PayPal/IPN.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3382964%40easy-digital-downloads%2Ftrunk&old=3364285%40easy-digital-downloads%2Ftrunk&sfp_email=&sfph_mail=
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Timeline
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.