CVE-2026-88764

MediumCVSS 5.4/10Last modified Sep 14, 2026

Description

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-269

Affected software

No affected versions have been published.

Timeline

Published
Sep 13, 2026
Last modified
Sep 14, 2026
NVD status
Deferred

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CVE-2026-88764: Medium severity, CVSS 5.4 | Vulnix