What is the CVSS score of EUVD-2026-15677?

EUVD-2026-15677 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Ultimate Membership Pro are affected by EUVD-2026-15677?

Ultimate Membership Pro WordPress plugin versions through 13.7 contain an authentication bypass vulnerability (CVE-2026-25357, CVSS 8.1) allowing unauthenticated remote attackers to circumvent access…

How to fix or mitigate EUVD-2026-15677?

Within 24 hours: Identify all WordPress installations using Ultimate Membership Pro and document current plugin version. Within 7 days: Contact the plugin vendor for patch timeline and interim mitigation guidance; implement Web Application Firewall rules to monitor suspicious authentication attempts to the plugin. Within 30 days: Apply vendor patch immediately upon release; if no patch is released, consider switching to an actively maintained membership alternative or restricting plugin access via IP allowlisting.

Ultimate Membership Pro EUVD-2026-15677

| CVE-2026-25357 HIGH

Authentication Bypass Using an Alternate Path or Channel (CWE-288)

2026-03-25 Patchstack

GHSA-7q8x-g7w6-4685

Authentication Bypass Ultimate Membership Pro

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 28, 2026 - 02:30 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Apr 23, 2026 - 16:12 vuln.today

cvss_changed

EUVD ID Assigned

Mar 25, 2026 - 16:47 euvd

EUVD-2026-15677

Analysis Generated

Mar 25, 2026 - 16:47 vuln.today

CVE Published

Mar 25, 2026 - 16:14 nvd

HIGH 8.1

DescriptionCVE.org

Authentication Bypass Using an Alternate Path or Channel vulnerability in azzaroco Ultimate Membership Pro indeed-membership-pro allows Authentication Abuse.This issue affects Ultimate Membership Pro: from n/a through <= 13.7.

AnalysisAI

Authentication bypass in Ultimate Membership Pro WordPress plugin versions through 13.7 enables remote attackers to circumvent access controls via alternate authentication paths, potentially achieving complete account takeover. Attack complexity is rated high (AC:H) but requires no authentication or user interaction. EPSS score is low (0.02%, 6th percentile) indicating minimal observed exploitation activity. No active exploitation confirmed by CISA KEV at time of analysis. SSVC framework rates technical impact as total with exploitation status of none.

Technical ContextAI

This vulnerability affects azzaroco's Ultimate Membership Pro WordPress plugin (indeed-membership-pro), a membership and subscription management solution for WordPress sites. The root cause is CWE-288 (Authentication Bypass Using an Alternate Path or Channel), indicating the plugin exposes multiple authentication mechanisms where one path lacks proper security controls. This class of vulnerability typically arises when developers implement primary authentication correctly but fail to secure alternative endpoints, API routes, or legacy authentication handlers that can grant the same privileged access. The CPE identifier cpe:2.3:a:azzaroco:ultimate_membership_pro confirms azzaroco as the vendor and the product scope encompasses all versions through 13.7.

RemediationAI

Upgrade Ultimate Membership Pro to version 13.8 or later if available, as version 13.7 is confirmed vulnerable. Verify current plugin version in WordPress admin dashboard under Plugins and check for updates. Consult the official Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/indeed-membership-pro/vulnerability/wordpress-ultimate-membership-pro-plugin-13-7-account-takeover-vulnerability for vendor-confirmed fix version, as the provided data does not include an independently verified patched release. If patch deployment must be delayed, implement immediate compensating controls: restrict WordPress admin panel access to trusted IP addresses via .htaccess or firewall rules; enable two-factor authentication for all user accounts especially those with elevated privileges; monitor authentication logs for unusual login patterns or access from unexpected sources. Note these mitigations reduce but do not eliminate risk, as the alternate authentication path may bypass standard login monitoring. Temporary deactivation of the plugin eliminates vulnerability but breaks membership functionality entirely. Review application logs for indicators of exploitation attempts prior to patching.