CVE-2026-7761
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-862 · Missing authorization
- Record status
- Deferred
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-7761.md and follow it. Check whether this project is affected by CVE-2026-7761. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-member-directory.php#L2726
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-member-directory.php#L289
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/core/class-query.php#L439
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.11.4/includes/um-short-functions.php#L2611
- https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/includes/core/class-member-directory.php#L2726
- https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/includes/core/class-member-directory.php#L289
- https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/includes/core/class-query.php#L439
- https://plugins.trac.wordpress.org/browser/ultimate-member/trunk/includes/um-short-functions.php#L2611
- https://plugins.trac.wordpress.org/changeset/3569970/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9aff7b03-4f03-434c-be87-b10ceeb4e625?source=cve