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

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Recon

Authenticate as Contributor
Delivery

Craft post with {usermeta:password_reset_link} tag
Exploit

Admin previews pending post
Install

Password reset token generated
C2

Attacker intercepts token
Execute

Reset admin password
Impact

Gain administrator access

Vulnerability Assessment

Weakness	CWE CWE-285 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Authorization verification MITRE ATT&CK 1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	WordPress site with Ultimate Member plugin versions up to 2.11.2 installed and activated. Requires authenticated attacker with Contributor-level access or above. Attacker crafts a malicious pending post containing '{usermeta:password_reset_link}' template tag within '[um_loggedin]' shortcode. Victim (Administrator) must preview the post to generate exploitable password reset token.
Impact	CVSS 8.0. EPSS 0.0%. No patch confirmed.
Exploit ScenarioDerived	An attacker could exploit this vulnerability in for WordPress is vulnerable to Sensitive Information Exposure in all to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 27, 2026

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

Earlier versions of this analysis (1)

v1 Mar 27, 2026 - 22:46 CVSS 8.0

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

RemediationAI

Monitor vendor channels for patch availability.

Affected VersionsENISA

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin * ≤2.11.2

Affected Packages

euvd ultimate_member_user_profile_registration_login_member_directory_content_restriction_membership_plugin no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-285 (Improper Authorization). CVSS 8.0 indicates high severity. Affects for WordPress is vulnerable to Sensitive Information Exposure in all.

Know when Ultimate Member User Profile Registration Login Member Directory Content Restriction Membership Plugin gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

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

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.

Executive ViewAI

Why It Matters

Ultimate Member WordPress plugin versions 2.11.2 and below contain a critical privilege escalation vulnerability allowing authenticated Contributors to steal Administrator password reset tokens through malicious preview posts, enabling full account takeover. Organizations using this plugin face immediate risk of administrative compromise without requiring external attackers, as any low-privilege user can exploit this to gain complete control of the WordPress site and underlying business systems.

Business Impact: High

Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict Contributor role from accessing preview-post functionality via user role editor; (2) Disable the '[um_loggedin]' shortcode globally or limit its use to Administrator-only pages; (3) Implement IP allowlisting for WordPress admin access; (4) Enable multi-factor authentication for all Administrator accounts; (5) Monitor password reset token generation and usage logs in real-time for anomalies.

Threat Intelligence Overview

EPSS Score

0.0%

Top 90% exploitable

Data Quality

7 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact

High

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +40

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.