Ultimate Member <= 2.13.1 - Missing Authorization to Unauthenticated Sensitive Profile Field Disclosure via Member Directory Field Privacy Bypass
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.13.1 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to view privacy-restricted member profile field values — including fields explicitly configured as owner-only, members-only, or role-restricted — by querying the publicly accessible wp_ajax_nopriv_um_get_members endpoint. The nonce required by the endpoint ('um-frontend-nonce') is emitted to all unauthenticated visitors via wp_localize_script, meaning it provides no meaningful access control and any anonymous visitor can satisfy the endpoint's authentication requirements.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin | <= 2.13.1 | 2.14.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-862- Platform
- WordPress
- Package
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin- Disclosed
- 02.10.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - cde81421-e080-4530-87a5-6515f1c9800b - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 82
- First → latest
- 03.2015 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 10
- High 20
- Medium 52
Disclosures per year
- 2017: 1
- 2018: 13
- 2019: 12
- 2020: 6
- 2021: 1
- 2022: 8
- 2023: 3
- 2024: 6
- 2025: 10
- 2026: 15
earlier: 7
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Ultimate Member <= 2.13.1 - Missing Authorization to Unauthenticated Sensitive Profile Field Disclosure via Member Directory Field Privacy Bypass this entry
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