WordPress security changelog
HIGH CVE-2026-7761 Deferred

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin: Privilege escalation or authentication bypass

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin is affected by privilege escalation or authentication bypass. Exploitation requires at least contributor-level access. A successful request can grant permissions or access that the caller should not possess. The published affected range is <= 2.11.4.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Plugin slug
ultimate-member
Affected
<= 2.11.4
Safe version
> 2.11.4
Published
Jun 24, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Jun 24, 2026 and is one of 56 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin to a release after 2.11.4, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources