What is the CVSS score of CVE-2026-4248?

CVE-2026-4248 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-4248?

Within 24 hours: Identify all WordPress installations using Ultimate Member plugin and document current versions via plugin dashboard; disable the '[um_loggedin]' shortcode functionality site-wide as interim protection. Within 7 days: Update Ultimate Member to version 2.11.3 or later once vendor releases patch; alternatively migrate to a maintained alternative authentication plugin. Within 30 days: Conduct forensic audit of all password reset logs and admin account activity since plugin deployment; reset all Administrator account passwords; review and restrict Contributor role capabilities to remove preview-post functionality.

Ultimate Member User Profile Registration Login Member Directory Content Restriction Membership Plugin CVE-2026-4248

EUVD-2026-16901 HIGH

Improper Authorization (CWE-285)

2026-03-27 Wordfence

GHSA-65gh-443q-r8g2

WordPress Authentication Bypass Information Disclosure Ultimate Member User Profile Registration Login Member Directory Content Restriction Membership Plugin Wordpress Plugin Ultimatemember

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 24, 2026 - 16:37 vuln.today

cvss_changed

EUVD ID Assigned

Mar 27, 2026 - 22:46 euvd

EUVD-2026-16901

Analysis Generated

Mar 27, 2026 - 22:46 vuln.today

CVE Published

Mar 27, 2026 - 22:26 nvd

HIGH 8.0

DescriptionCVE.org

The Ultimate Member plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.2. This is due to the '{usermeta:password_reset_link}' template tag being processed within post content via the '[um_loggedin]' shortcode, which generates a valid password reset token for the currently logged-in user viewing the page. This makes it possible for authenticated attackers, with Contributor-level access and above, to craft a malicious pending post that, when previewed by an Administrator, generates a password reset token for the Administrator and exfiltrates it to an attacker-controlled server, leading to full account takeover.

AnalysisAI

A information disclosure vulnerability in for WordPress is vulnerable to Sensitive Information Exposure in all (CVSS 8.0). High severity vulnerability requiring prompt remediation.