Ultimate Member <= 2.11.4 - Authenticated (Contributor+) Account Takeover via Password Reset Link Disclosure
The Ultimate Member plugin for WordPress is vulnerable to Account Takeover via Password Reset Link Disclosure in all versions up to and including 2.11.4. This is due to a chain of three logic bugs: (1) an MD5 hash fallback in get_directory_by_hash() that allows any post to be used as a member directory by computing SUBSTRING(MD5(post_id), 11, 5), (2) a strstr() parsing logic flaw in post_data() that allows bypassing WordPress's protected meta key restrictions by placing 'um' anywhere in the meta key name rather than at the start, and (3) missing field name validation in build_user_card_data() that allows arbitrary field names including 'password_reset_link' to be passed to um_filtered_value(). This makes it possible for authenticated attackers with Contributor-level access and above to create a malicious post via XMLRPC with crafted meta fields, use the MD5 fallback to point the member directory AJAX handler to their post, inject 'password_reset_link' into the tagline_fields configuration, and leak live password reset URLs for all users in the member directory response, including administrators.
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| WordPress-Plugin | Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin | <= 2.11.4 | 2.12.0 |
Verweise
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Schwäche (CWE)
CWE-862- Plattform
- WordPress
- Paket
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin- Veröffentlicht
- 23.06.2026
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
Wordfence Intelligence - 9aff7b03-4f03-434c-be87-b10ceeb4e625 - Wordfence Intelligence
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Schwachstellenhistorie: Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Alle veröffentlichten Schwachstellen dieses Pakets (WordPress-Plugin), neueste zuerst. Zeigt, ob es ein einmaliger Ausrutscher ist oder ein Paket, das man im Auge behalten muss.
- Einträge insgesamt
- 82
- Erste → letzte
- 03.2015 10.2026
- Ohne Fix
- 0
- In Angriffen ausgenutzt
- 0
Verteilung nach Schweregrad
- Kritisch 10
- Hoch 20
- Mittel 52
Veröffentlichungen pro Jahr
- 2017: 1
- 2018: 13
- 2019: 12
- 2020: 6
- 2021: 1
- 2022: 8
- 2023: 3
- 2024: 6
- 2025: 10
- 2026: 15
früher: 7
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Ultimate Member <= 2.11.4 - Authenticated (Contributor+) Account Takeover via Password Reset Link Disclosure dieser Eintrag
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