Medium severity · published May 28, 2026
CVE-2026-7533
Easy Digital Downloads <= 3.6.7 - Cross-Site Request Forgery to Payment Account Hijacking via 'square_tokens' Parameter
4.3
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Easy Digital Downloads – eCommerce Payments and Subscriptions made easy · smub
through 3.6.7 · source: vendor
Affected product
ED
Easy Digital Downloads – eCommerce Payments and Subscriptions made easy
smub
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7533
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7533
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Connection.php#L47
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Connection.php#L58
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/tags/3.6.5/src/Gateways/Square/Gateway.php#L114
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Connection.php#L47
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Connection.php#L58
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/easy-digital-downloads/trunk/src/Gateways/Square/Gateway.php#L114
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