CVE-2026-7761 Ultimate Member <= 2.11.4 - Authenticated (Contributor+) Account Takeover via Password Reset Link Disclosure
Authenticated attackers can leak password reset links for all users, including administrators, leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7761?
CVE-2026-7761 is a high-severity vulnerability in ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-7761?
How do I fix CVE-2026-7761?
No fix has been published for CVE-2026-7761 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-7761 being exploited?
There is no known exploitation of CVE-2026-7761 in the wild and no public exploit code.
Sources
Also known as GHSA-qqfq-fg56-qv34.