What’s Vulnerable › Vulnerabilities

CVE-2026-7533: Easy Digital Downloads <= 3.6.7 - Cross-Site Request Forgery to Payment Account Hijacking via 'square_tokens' Parameter

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-06-17
• Weakness: CWE-352

Description

The Easy Digital Downloads plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.6.7. This is due to missing nonce verification in the `handle_oauth_redirect()` function, which is registered on the `admin_init` hook and processes Square OAuth tokens from a user-supplied GET parameter without any CSRF token validation. This makes it possible for unauthenticated attackers to overwrite the store's Square payment gateway credentials by tricking a logged-in administrator into clicking a crafted link, potentially resulting in payment account hijacking.

Affected products

• smub Easy Digital Downloads – eCommerce Payments and Subscriptions made easy: through 3.6.7

References

• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Connection.php#L47
• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Connection.php#L58
• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Gateway.php#L114
• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Connection.php#L47
• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Connection.php#L58
• https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Gateway.php#L114
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3536197%40easy-digital-downloads&old=3511193%40easy-digital-downloads&sfp_email=&sfph_mail=#file6607
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e375f761-459c-4cad-823b-2a94ac901410?source=cve

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