medium5.4
CVE-2026-88764
The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level con…
Impact
The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged membership level.
Affected products
| Product | Affected versions |
|---|---|
| Simple Membership WordPress Plugin | before 4.7.8 |
Versions were read from the advisory text. No structured product data has been published for this record yet.