Divi Membership <= 2.3.0 - Unauthenticated Authentication Bypass via 'paypal_param' Parameter
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| DiviEngine | Divi Membership | unaffected |
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No data.
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| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Diviengine | Divi Membership |
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| Wordpress-extensions | Divi Membership |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.575% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Diviengine
Diviengine divi Membership Wordpress-extensions Wordpress-extensions divi Membership |
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| Vendors & Products |
Diviengine
Diviengine divi Membership Wordpress-extensions Wordpress-extensions divi Membership |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Divi Membership plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.3.0. The `process_paypal_callback` function, hooked to the `init` action, accepts a base64-encoded `paypal_param` GET parameter with no IPN validation, no cryptographic signature check, no ownership verification, and no nonce, allowing it to trust an entirely attacker-controlled user ID value that is passed directly to `wp_set_current_user()` and `wp_set_auth_cookie()`. This makes it possible for unauthenticated attackers to log in as any existing WordPress user — including administrators — by supplying an arbitrary user ID in the `paypal_param` GET parameter, resulting in full site takeover. The vulnerability is further compounded by the fact that the PayPal gateway class is instantiated unconditionally regardless of whether PayPal is enabled or configured, ensuring the vulnerable hook is always registered on every front-end request. | |
| Title | Divi Membership <= 2.3.0 - Unauthenticated Authentication Bypass via 'paypal_param' Parameter | |
| Weaknesses | CWE-287 | |
| References |
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| Metrics |
cvssV3_1
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