CVE-2026-96451
Received Received - Intake

Authorization Bypass in Ultimate Member Plugin

Publication date: 2026-10-03

Last updated on: 2026-10-03

Assigner: Patchstack

Description
Authorization Bypass Through User-Controlled Key vulnerability in Ultimate Member Ultimate Member ultimate-member allows Privilege Escalation.This issue affects Ultimate Member: from n/a through 2.13.1.

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Meta Information

Published
2026-10-03
Last Modified
2026-10-03
Generated
2026-10-03
AI Q&A
2026-10-03
EPSS Evaluated
N/A
NVD
CVE-2026-96451
EUVD
EUVD-2026-92042

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ultimate_member ultimate_member From 2.0.0 (inc) to 2.13.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This is an Authorization Bypass Through User-Controlled Key vulnerability in the Ultimate Member plugin for WordPress. It allows low-privilege users like subscribers to escalate their privileges to administrator level, gaining full control over the website.

Detection Guidance

Check if the Ultimate Member plugin version is 2.13.1 or earlier. If so, update to version 2.14.0 or later immediately. Use commands like 'wp plugin list' in WordPress CLI or check the plugin version in the WordPress admin panel.

Impact Analysis

An attacker could exploit this to take full control of your WordPress site, allowing them to modify content, steal data, install malware, or disrupt operations. It poses a high risk due to its ease of exploitation and potential for mass attacks.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive user data, violating GDPR and HIPAA requirements for data protection and access control. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Update the Ultimate Member plugin to version 2.14.0 or later immediately to patch the vulnerability. Apply Patchstack's mitigation rule to block attacks until the update is completed.

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