SEPTEMBER 13, 2026
Live Feed
Back to database
Case File

CVE-2026-88764

MEDIUM · CVSS 5.4

Source: NVD + CISA KEV + EPSS · Published 2026-09-13 · Last synced 2026-09-13

CyberRota Analysis

AI-Generated

The Simple Membership plugin for WordPress prior to version 4.7.8 is vulnerable due to inadequate validation of membership levels in PayPal payment notifications, which could allow users to exploit this flaw by paying for a lower-priced membership while gaining access to higher-privileged levels. This could lead to unauthorized access and potential misuse of premium features. WordPress site administrators using this plugin should prioritize updating to the latest version to mitigate the risk of privilege escalation.

CVE
CVE-2026-88764
Severity
MEDIUM
CVSS
5.4
EPSS
N/A
WordPress

Original NVD 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.