CVE-2026-7761 json
Ultimate Member <= 2.11.4 - Authenticated (Contributor+) Account Takeover via Password Reset Link Disclosure
published 2026-06-24 4 mo ago modified 2026-06-25 4 mo ago also EUVD-2026-38714
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/9aff7b03-4f03-434c-be87-b10ceeb4e625?source=cve
- plugins.trac.wordpress.org /browser/ultimate-member/trunk/includes/core/class-member-directory.php#L2726
- plugins.trac.wordpress.org /browser/ultimate-member/tags/2.11.4/includes/core/class-member-directory.php#L2726
- plugins.trac.wordpress.org /browser/ultimate-member/trunk/includes/core/class-member-directory.php#L289
- plugins.trac.wordpress.org /browser/ultimate-member/tags/2.11.4/includes/core/class-member-directory.php#L289
- plugins.trac.wordpress.org /browser/ultimate-member/trunk/includes/core/class-query.php#L439
- plugins.trac.wordpress.org /browser/ultimate-member/tags/2.11.4/includes/core/class-query.php#L439
- plugins.trac.wordpress.org /browser/ultimate-member/trunk/includes/um-short-functions.php#L2611
- plugins.trac.wordpress.org /browser/ultimate-member/tags/2.11.4/includes/um-short-functions.php#L2611
- plugins.trac.wordpress.org /changeset/3569970/
Sources
- CVE List CVE-2026-7761
- NVD CVE-2026-7761
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.