Risk Profile
5.3
CVSS Score
Weakness
Missing Authorization
Researchers
Bonds
Vulnerability Report
Plugin
Medium
No patch listed
CVE-2026-39659
Ultimate Member <= 2.11.3 - Missing Authorization
The Ultimate Member plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 2.11.3. This makes it possible for unauthenticated attackers to perform an unauthorized action.
Quick Answer
CVE-2026-39659 is a medium severity with CVSS 5.3 Vulnerability issue affecting the Plugin Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin. It affects Versions up to 2.11.3 and is listed without a confirmed patched release.
Published
Feb 17, 2026
Last Updated
Apr 22, 2026
Slug
ultimate-member
Continue Triage
Review the full Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin vulnerability cluster
Use the related hub and response guides to connect this CVE-2026-39659 report with patch validation, scanner checks, and site hardening work.
Plugin Hub
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin CVEs and fixed versions
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Hardening
WordPress hardening checklist after plugin CVEs
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Response
WordPress incident response plan for vulnerable plugins
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
Patch Status
No patched release listed
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Operator Briefing
CVE-2026-39659 is tracked for the Plugin Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin as medium severity with CVSS 5.3. The affected range is Versions up to 2.11.3. No fixed release is listed in this feed entry, so operators should monitor the vendor and reference links before accepting the risk.
Issue Type
Vulnerability
Primary Fixed Version
Not published
Primary Affected Range
Versions up to 2.11.3
Tracking ID
CVE-2026-39659
Indexing Quality Signals
Why this report is useful for search and triage
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
Meta Robots
Index, follow
Identifier strength
CVE-2026-39659
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Version evidence
Versions up to 2.11.3
Affected version data gives operators a concrete comparison point against installed WordPress software.
Patch evidence
No patch listed
No patched version is listed, so the record is useful mainly for monitoring and risk acceptance decisions.
Source coverage
1 reference
External references are available for source validation, advisory review, and incident notes.
Verification Checklist
How to validate this finding
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Step 1
Inventory the installed Plugin package and compare its version with Versions up to 2.11.3.
Step 2
Monitor vendor advisories because this Vulnerability issue has no fixed release listed here.
Step 3
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
Step 4
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
Detailed Metadata
| Software Type | Plugin |
|---|---|
| Software Slug |
ultimate-member
View on wordpress.org
|
| CVE | CVE-2026-39659 |
| Patched Versions |
No patched versions published.
|
| Affected Versions |
Versions up to 2.11.3
|
Related CVE Cluster
Related CVEs for Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Critical
CVE-2020-36157
2.1.12
Nov 09, 2020
CVE-2020-36157 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Privilege Escalation
Ultimate Member <= 2.1.11 - Unauthenticated Privilege Escalation via User Roles
Critical
CVE-2020-36155
2.1.12
Nov 09, 2020
CVE-2020-36155 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Privilege Escalation
Ultimate Member <= 2.1.11 - Unauthenticated Privilege Escalation via User Meta
Critical
CVE-2020-36156
2.1.12
Nov 09, 2020
CVE-2020-36156 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Privilege Escalation
Ultimate Member <= 2.1.11 - Authenticated Privilege Escalation via Profile Update
Critical
CVE-2024-1071
2.8.3
Feb 23, 2024
CVE-2024-1071 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin SQL Injection
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin 2.1.3 - 2.8.2 - Unauthenticated SQL Injection
Critical
CVE-2023-3460
2.6.7
Jun 29, 2023
CVE-2023-3460 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Privilege Escalation
Ultimate Member <= 2.6.6 - Privilege Escalation via Arbitrary User Meta Updates
High
CVE-2019-10270
2.0.40
Jun 15, 2019
CVE-2019-10270 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Privilege Escalation
Ultimate Member <= 2.0.39 - Privilege Escalation
High
CVE-2019-10673
2.0.40
Apr 01, 2019
CVE-2019-10673 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Cross-Site Request Forgery
Ultimate Member <= 2.0.39 - Cross-Site Request Forgery
High
CVE-2018-10233
2.0.7
Apr 23, 2018
CVE-2018-10233 Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Cross-Site Request Forgery
Ultimate Member <= 2.0.6 - Multiple Cross-Site Request Forgery Issues
Licensing Notices
This record contains material that is subject to copyright
DEFIANT
Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
MITRE
Copyright 1999-2026 The MITRE Corporation
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more